145489640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{337}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 337296960

約数和(自身を除く): 191807320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 251, 337, 344, 430, 502, 674, 860, 1004, 1255, 1348, 1685, 1720, 2008, 2510, 2696, 3370, 5020, 6740, 10040, 10793, 13480, 14491, 21586, 28982, 43172, 53965, 57964, 72455, 84587, 86344, 107930, 115928, 144910, 169174, 215860, 289820, 338348, 422935, 431720, 579640, 676696, 845870, 1691740, 3383480, 3637241, 7274482, 14548964, 18186205, 29097928, 36372410, 72744820, 145489640]

約数ペア:

[(1, 145489640), (2, 72744820), (4, 36372410), (5, 29097928), (8, 18186205), (10, 14548964), (20, 7274482), (40, 3637241), (43, 3383480), (86, 1691740), (172, 845870), (215, 676696), (251, 579640), (337, 431720), (344, 422935), (430, 338348), (502, 289820), (674, 215860), (860, 169174), (1004, 144910), (1255, 115928), (1348, 107930), (1685, 86344), (1720, 84587), (2008, 72455), (2510, 57964), (2696, 53965), (3370, 43172), (5020, 28982), (6740, 21586), (10040, 14491), (10793, 13480)]