64493560

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22709}}^1$

素因数の和:22791

約数の個数: 32

約数和(自身を含む): 147160800

約数和(自身を除く): 82667240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 22709, 45418, 90836, 113545, 181672, 227090, 454180, 908360, 1612339, 3224678, 6449356, 8061695, 12898712, 16123390, 32246780, 64493560]

約数ペア:

[(1, 64493560), (2, 32246780), (4, 16123390), (5, 12898712), (8, 8061695), (10, 6449356), (20, 3224678), (40, 1612339), (71, 908360), (142, 454180), (284, 227090), (355, 181672), (568, 113545), (710, 90836), (1420, 45418), (2840, 22709)]