64485040

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11353}}^1$

素因数の和:11437

約数の個数: 40

約数和(自身を含む): 152052768

約数和(自身を除く): 87567728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 11353, 22706, 45412, 56765, 90824, 113530, 181648, 227060, 454120, 806063, 908240, 1612126, 3224252, 4030315, 6448504, 8060630, 12897008, 16121260, 32242520, 64485040]

約数ペア:

[(1, 64485040), (2, 32242520), (4, 16121260), (5, 12897008), (8, 8060630), (10, 6448504), (16, 4030315), (20, 3224252), (40, 1612126), (71, 908240), (80, 806063), (142, 454120), (284, 227060), (355, 181648), (568, 113530), (710, 90824), (1136, 56765), (1420, 45412), (2840, 22706), (5680, 11353)]