20123658880

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1949}}^1$

素因数の和:2071

約数の個数: 256

約数和(自身を含む): 55636308000

約数和(自身を除く): 35512649120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 73, 80, 85, 104, 128, 130, 136, 146, 160, 170, 208, 221, 260, 272, 292, 320, 340, 365, 416, 442, 520, 544, 584, 640, 680, 730, 832, 884, 949, 1040, 1088, 1105, 1168, 1241, 1360, 1460, 1664, 1768, 1898, 1949, 2080, 2176, 2210, 2336, 2482, 2720, 2920, 3536, 3796, 3898, 4160, 4420, 4672, 4745, 4964, 5440, 5840, 6205, 7072, 7592, 7796, 8320, 8840, 9344, 9490, 9745, 9928, 10880, 11680, 12410, 14144, 15184, 15592, 16133, 17680, 18980, 19490, 19856, 23360, 24820, 25337, 28288, 30368, 31184, 32266, 33133, 35360, 37960, 38980, 39712, 46720, 49640, 50674, 60736, 62368, 64532, 66266, 70720, 75920, 77960, 79424, 80665, 99280, 101348, 121472, 124736, 126685, 129064, 132532, 141440, 142277, 151840, 155920, 158848, 161330, 165665, 198560, 202696, 249472, 253370, 258128, 265064, 284554, 303680, 311840, 322660, 331330, 397120, 405392, 430729, 506740, 516256, 530128, 569108, 607360, 623680, 645320, 662660, 711385, 794240, 810784, 861458, 1013480, 1032512, 1060256, 1138216, 1247360, 1290640, 1325320, 1422770, 1621568, 1722916, 1849601, 2026960, 2065024, 2120512, 2153645, 2276432, 2418709, 2581280, 2650640, 2845540, 3243136, 3445832, 3699202, 4053920, 4241024, 4307290, 4552864, 4837418, 5162560, 5301280, 5691080, 6891664, 7398404, 8107840, 8614580, 9105728, 9248005, 9674836, 10325120, 10602560, 11382160, 12093545, 13783328, 14796808, 16215680, 17229160, 18211456, 18496010, 19349672, 21205120, 22764320, 24187090, 27566656, 29593616, 31443217, 34458320, 36992020, 38699344, 45528640, 48374180, 55133312, 59187232, 62886434, 68916640, 73984040, 77398688, 91057280, 96748360, 118374464, 125772868, 137833280, 147968080, 154797376, 157216085, 193496720, 236748928, 251545736, 275666560, 295936160, 309594752, 314432170, 386993440, 503091472, 591872320, 628864340, 773986880, 1006182944, 1183744640, 1257728680, 1547973760, 2012365888, 2515457360, 4024731776, 5030914720, 10061829440, 20123658880]

約数ペア:

[(1, 20123658880), (2, 10061829440), (4, 5030914720), (5, 4024731776), (8, 2515457360), (10, 2012365888), (13, 1547973760), (16, 1257728680), (17, 1183744640), (20, 1006182944), (26, 773986880), (32, 628864340), (34, 591872320), (40, 503091472), (52, 386993440), (64, 314432170), (65, 309594752), (68, 295936160), (73, 275666560), (80, 251545736), (85, 236748928), (104, 193496720), (128, 157216085), (130, 154797376), (136, 147968080), (146, 137833280), (160, 125772868), (170, 118374464), (208, 96748360), (221, 91057280), (260, 77398688), (272, 73984040), (292, 68916640), (320, 62886434), (340, 59187232), (365, 55133312), (416, 48374180), (442, 45528640), (520, 38699344), (544, 36992020), (584, 34458320), (640, 31443217), (680, 29593616), (730, 27566656), (832, 24187090), (884, 22764320), (949, 21205120), (1040, 19349672), (1088, 18496010), (1105, 18211456), (1168, 17229160), (1241, 16215680), (1360, 14796808), (1460, 13783328), (1664, 12093545), (1768, 11382160), (1898, 10602560), (1949, 10325120), (2080, 9674836), (2176, 9248005), (2210, 9105728), (2336, 8614580), (2482, 8107840), (2720, 7398404), (2920, 6891664), (3536, 5691080), (3796, 5301280), (3898, 5162560), (4160, 4837418), (4420, 4552864), (4672, 4307290), (4745, 4241024), (4964, 4053920), (5440, 3699202), (5840, 3445832), (6205, 3243136), (7072, 2845540), (7592, 2650640), (7796, 2581280), (8320, 2418709), (8840, 2276432), (9344, 2153645), (9490, 2120512), (9745, 2065024), (9928, 2026960), (10880, 1849601), (11680, 1722916), (12410, 1621568), (14144, 1422770), (15184, 1325320), (15592, 1290640), (16133, 1247360), (17680, 1138216), (18980, 1060256), (19490, 1032512), (19856, 1013480), (23360, 861458), (24820, 810784), (25337, 794240), (28288, 711385), (30368, 662660), (31184, 645320), (32266, 623680), (33133, 607360), (35360, 569108), (37960, 530128), (38980, 516256), (39712, 506740), (46720, 430729), (49640, 405392), (50674, 397120), (60736, 331330), (62368, 322660), (64532, 311840), (66266, 303680), (70720, 284554), (75920, 265064), (77960, 258128), (79424, 253370), (80665, 249472), (99280, 202696), (101348, 198560), (121472, 165665), (124736, 161330), (126685, 158848), (129064, 155920), (132532, 151840), (141440, 142277)]