90225008

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{659}}^1$

素因数の和:909

約数の個数: 40

約数和(自身を含む): 180048000

約数和(自身を除く): 89822992

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 199, 344, 398, 659, 688, 796, 1318, 1592, 2636, 3184, 5272, 8557, 10544, 17114, 28337, 34228, 56674, 68456, 113348, 131141, 136912, 226696, 262282, 453392, 524564, 1049128, 2098256, 5639063, 11278126, 22556252, 45112504, 90225008]

約数ペア:

[(1, 90225008), (2, 45112504), (4, 22556252), (8, 11278126), (16, 5639063), (43, 2098256), (86, 1049128), (172, 524564), (199, 453392), (344, 262282), (398, 226696), (659, 136912), (688, 131141), (796, 113348), (1318, 68456), (1592, 56674), (2636, 34228), (3184, 28337), (5272, 17114), (8557, 10544)]