204397960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{393073}}^1$

素因数の和:393097

約数の個数: 32

約数和(自身を含む): 495273240

約数和(自身を除く): 290875280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 393073, 786146, 1572292, 1965365, 3144584, 3930730, 5109949, 7861460, 10219898, 15722920, 20439796, 25549745, 40879592, 51099490, 102198980, 204397960]

約数ペア:

[(1, 204397960), (2, 102198980), (4, 51099490), (5, 40879592), (8, 25549745), (10, 20439796), (13, 15722920), (20, 10219898), (26, 7861460), (40, 5109949), (52, 3930730), (65, 3144584), (104, 1965365), (130, 1572292), (260, 786146), (520, 393073)]