20218202480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61297}}^1$

素因数の和:61367

約数の個数: 160

約数和(自身を含む): 58375311360

約数和(自身を除く): 38157108880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 80, 95, 112, 124, 133, 140, 152, 155, 190, 217, 248, 266, 280, 304, 310, 380, 434, 496, 532, 560, 589, 620, 665, 760, 868, 1064, 1085, 1178, 1240, 1330, 1520, 1736, 2128, 2170, 2356, 2480, 2660, 2945, 3472, 4123, 4340, 4712, 5320, 5890, 8246, 8680, 9424, 10640, 11780, 16492, 17360, 20615, 23560, 32984, 41230, 47120, 61297, 65968, 82460, 122594, 164920, 245188, 306485, 329840, 429079, 490376, 612970, 858158, 980752, 1164643, 1225940, 1716316, 1900207, 2145395, 2329286, 2451880, 3432632, 3800414, 4290790, 4658572, 4903760, 5823215, 6865264, 7600828, 8152501, 8581580, 9317144, 9501035, 11646430, 13301449, 15201656, 16305002, 17163160, 18634288, 19002070, 23292860, 26602898, 30403312, 32610004, 34326320, 36103933, 38004140, 40762505, 46585720, 53205796, 65220008, 66507245, 72207866, 76008280, 81525010, 93171440, 106411592, 130440016, 133014490, 144415732, 152016560, 163050020, 180519665, 212823184, 252727531, 266028980, 288831464, 326100040, 361039330, 505455062, 532057960, 577662928, 652200080, 722078660, 1010910124, 1064115920, 1263637655, 1444157320, 2021820248, 2527275310, 2888314640, 4043640496, 5054550620, 10109101240, 20218202480]

約数ペア:

[(1, 20218202480), (2, 10109101240), (4, 5054550620), (5, 4043640496), (7, 2888314640), (8, 2527275310), (10, 2021820248), (14, 1444157320), (16, 1263637655), (19, 1064115920), (20, 1010910124), (28, 722078660), (31, 652200080), (35, 577662928), (38, 532057960), (40, 505455062), (56, 361039330), (62, 326100040), (70, 288831464), (76, 266028980), (80, 252727531), (95, 212823184), (112, 180519665), (124, 163050020), (133, 152016560), (140, 144415732), (152, 133014490), (155, 130440016), (190, 106411592), (217, 93171440), (248, 81525010), (266, 76008280), (280, 72207866), (304, 66507245), (310, 65220008), (380, 53205796), (434, 46585720), (496, 40762505), (532, 38004140), (560, 36103933), (589, 34326320), (620, 32610004), (665, 30403312), (760, 26602898), (868, 23292860), (1064, 19002070), (1085, 18634288), (1178, 17163160), (1240, 16305002), (1330, 15201656), (1520, 13301449), (1736, 11646430), (2128, 9501035), (2170, 9317144), (2356, 8581580), (2480, 8152501), (2660, 7600828), (2945, 6865264), (3472, 5823215), (4123, 4903760), (4340, 4658572), (4712, 4290790), (5320, 3800414), (5890, 3432632), (8246, 2451880), (8680, 2329286), (9424, 2145395), (10640, 1900207), (11780, 1716316), (16492, 1225940), (17360, 1164643), (20615, 980752), (23560, 858158), (32984, 612970), (41230, 490376), (47120, 429079), (61297, 329840), (65968, 306485), (82460, 245188), (122594, 164920)]