72641920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8731}}^1$

素因数の和:8763

約数の個数: 64

約数和(自身を含む): 187039440

約数和(自身を除く): 114397520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 8731, 17462, 34924, 43655, 69848, 87310, 113503, 139696, 174620, 227006, 279392, 349240, 454012, 558784, 567515, 698480, 908024, 1117568, 1135030, 1396960, 1816048, 2270060, 2793920, 3632096, 4540120, 5587840, 7264192, 9080240, 14528384, 18160480, 36320960, 72641920]

約数ペア:

[(1, 72641920), (2, 36320960), (4, 18160480), (5, 14528384), (8, 9080240), (10, 7264192), (13, 5587840), (16, 4540120), (20, 3632096), (26, 2793920), (32, 2270060), (40, 1816048), (52, 1396960), (64, 1135030), (65, 1117568), (80, 908024), (104, 698480), (128, 567515), (130, 558784), (160, 454012), (208, 349240), (260, 279392), (320, 227006), (416, 174620), (520, 139696), (640, 113503), (832, 87310), (1040, 69848), (1664, 43655), (2080, 34924), (4160, 17462), (8320, 8731)]