20813367040

素因数分解:

$2^8\times 5^1\times {\mathrm{173}}^1\times {\mathrm{193}}^1\times {\mathrm{487}}^1$

素因数の和:874

約数の個数: 144

約数和(自身を含む): 50505997248

約数和(自身を除く): 29692630208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 173, 193, 256, 320, 346, 386, 487, 640, 692, 772, 865, 965, 974, 1280, 1384, 1544, 1730, 1930, 1948, 2435, 2768, 3088, 3460, 3860, 3896, 4870, 5536, 6176, 6920, 7720, 7792, 9740, 11072, 12352, 13840, 15440, 15584, 19480, 22144, 24704, 27680, 30880, 31168, 33389, 38960, 44288, 49408, 55360, 61760, 62336, 66778, 77920, 84251, 93991, 110720, 123520, 124672, 133556, 155840, 166945, 168502, 187982, 221440, 247040, 267112, 311680, 333890, 337004, 375964, 421255, 469955, 534224, 623360, 667780, 674008, 751928, 842510, 939910, 1068448, 1335560, 1348016, 1503856, 1685020, 1879820, 2136896, 2671120, 2696032, 3007712, 3370040, 3759640, 4273792, 5342240, 5392064, 6015424, 6740080, 7519280, 8547584, 10684480, 10784128, 12030848, 13480160, 15038560, 16260443, 21368960, 21568256, 24061696, 26960320, 30077120, 32520886, 42737920, 53920640, 60154240, 65041772, 81302215, 107841280, 120308480, 130083544, 162604430, 260167088, 325208860, 520334176, 650417720, 1040668352, 1300835440, 2081336704, 2601670880, 4162673408, 5203341760, 10406683520, 20813367040]

約数ペア:

[(1, 20813367040), (2, 10406683520), (4, 5203341760), (5, 4162673408), (8, 2601670880), (10, 2081336704), (16, 1300835440), (20, 1040668352), (32, 650417720), (40, 520334176), (64, 325208860), (80, 260167088), (128, 162604430), (160, 130083544), (173, 120308480), (193, 107841280), (256, 81302215), (320, 65041772), (346, 60154240), (386, 53920640), (487, 42737920), (640, 32520886), (692, 30077120), (772, 26960320), (865, 24061696), (965, 21568256), (974, 21368960), (1280, 16260443), (1384, 15038560), (1544, 13480160), (1730, 12030848), (1930, 10784128), (1948, 10684480), (2435, 8547584), (2768, 7519280), (3088, 6740080), (3460, 6015424), (3860, 5392064), (3896, 5342240), (4870, 4273792), (5536, 3759640), (6176, 3370040), (6920, 3007712), (7720, 2696032), (7792, 2671120), (9740, 2136896), (11072, 1879820), (12352, 1685020), (13840, 1503856), (15440, 1348016), (15584, 1335560), (19480, 1068448), (22144, 939910), (24704, 842510), (27680, 751928), (30880, 674008), (31168, 667780), (33389, 623360), (38960, 534224), (44288, 469955), (49408, 421255), (55360, 375964), (61760, 337004), (62336, 333890), (66778, 311680), (77920, 267112), (84251, 247040), (93991, 221440), (110720, 187982), (123520, 168502), (124672, 166945), (133556, 155840)]