64206220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{246947}}^1$

素因数の和:246969

約数の個数: 24

約数和(自身を含む): 145205424

約数和(自身を除く): 80999204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 246947, 493894, 987788, 1234735, 2469470, 3210311, 4938940, 6420622, 12841244, 16051555, 32103110, 64206220]

約数ペア:

[(1, 64206220), (2, 32103110), (4, 16051555), (5, 12841244), (10, 6420622), (13, 4938940), (20, 3210311), (26, 2469470), (52, 1234735), (65, 987788), (130, 493894), (260, 246947)]