64521860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{248161}}^1$

素因数の和:248183

約数の個数: 24

約数和(自身を含む): 145919256

約数和(自身を除く): 81397396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 248161, 496322, 992644, 1240805, 2481610, 3226093, 4963220, 6452186, 12904372, 16130465, 32260930, 64521860]

約数ペア:

[(1, 64521860), (2, 32260930), (4, 16130465), (5, 12904372), (10, 6452186), (13, 4963220), (20, 3226093), (26, 2481610), (52, 1240805), (65, 992644), (130, 496322), (260, 248161)]