64064320

素因数分解:

$2^6\times 5^1\times {\mathrm{200201}}^1$

素因数の和:200218

約数の個数: 28

約数和(自身を含む): 152553924

約数和(自身を除く): 88489604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 200201, 400402, 800804, 1001005, 1601608, 2002010, 3203216, 4004020, 6406432, 8008040, 12812864, 16016080, 32032160, 64064320]

約数ペア:

[(1, 64064320), (2, 32032160), (4, 16016080), (5, 12812864), (8, 8008040), (10, 6406432), (16, 4004020), (20, 3203216), (32, 2002010), (40, 1601608), (64, 1001005), (80, 800804), (160, 400402), (320, 200201)]