20067298480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{27647}}^1$

素因数の和:27914

約数の個数: 80

約数和(自身を含む): 47969501184

約数和(自身を除く): 27902202704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 211, 215, 344, 422, 430, 688, 844, 860, 1055, 1688, 1720, 2110, 3376, 3440, 4220, 8440, 9073, 16880, 18146, 27647, 36292, 45365, 55294, 72584, 90730, 110588, 138235, 145168, 181460, 221176, 276470, 362920, 442352, 552940, 725840, 1105880, 1188821, 2211760, 2377642, 4755284, 5833517, 5944105, 9510568, 11667034, 11888210, 19021136, 23334068, 23776420, 29167585, 46668136, 47552840, 58335170, 93336272, 95105680, 116670340, 233340680, 250841231, 466681360, 501682462, 1003364924, 1254206155, 2006729848, 2508412310, 4013459696, 5016824620, 10033649240, 20067298480]

約数ペア:

[(1, 20067298480), (2, 10033649240), (4, 5016824620), (5, 4013459696), (8, 2508412310), (10, 2006729848), (16, 1254206155), (20, 1003364924), (40, 501682462), (43, 466681360), (80, 250841231), (86, 233340680), (172, 116670340), (211, 95105680), (215, 93336272), (344, 58335170), (422, 47552840), (430, 46668136), (688, 29167585), (844, 23776420), (860, 23334068), (1055, 19021136), (1688, 11888210), (1720, 11667034), (2110, 9510568), (3376, 5944105), (3440, 5833517), (4220, 4755284), (8440, 2377642), (9073, 2211760), (16880, 1188821), (18146, 1105880), (27647, 725840), (36292, 552940), (45365, 442352), (55294, 362920), (72584, 276470), (90730, 221176), (110588, 181460), (138235, 145168)]