64703720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22783}}^1$

素因数の和:22865

約数の個数: 32

約数和(自身を含む): 147640320

約数和(自身を除く): 82936600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 22783, 45566, 91132, 113915, 182264, 227830, 455660, 911320, 1617593, 3235186, 6470372, 8087965, 12940744, 16175930, 32351860, 64703720]

約数ペア:

[(1, 64703720), (2, 32351860), (4, 16175930), (5, 12940744), (8, 8087965), (10, 6470372), (20, 3235186), (40, 1617593), (71, 911320), (142, 455660), (284, 227830), (355, 182264), (568, 113915), (710, 91132), (1420, 45566), (2840, 22783)]