1555141900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{22571}}^1$

素因数の和:22651

約数の個数: 72

約数和(自身を含む): 3702981744

約数和(自身を除く): 2147839844

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 130, 212, 260, 265, 325, 530, 650, 689, 1060, 1300, 1325, 1378, 2650, 2756, 3445, 5300, 6890, 13780, 17225, 22571, 34450, 45142, 68900, 90284, 112855, 225710, 293423, 451420, 564275, 586846, 1128550, 1173692, 1196263, 1467115, 2257100, 2392526, 2934230, 4785052, 5868460, 5981315, 7335575, 11962630, 14671150, 15551419, 23925260, 29342300, 29906575, 31102838, 59813150, 62205676, 77757095, 119626300, 155514190, 311028380, 388785475, 777570950, 1555141900]

約数ペア:

[(1, 1555141900), (2, 777570950), (4, 388785475), (5, 311028380), (10, 155514190), (13, 119626300), (20, 77757095), (25, 62205676), (26, 59813150), (50, 31102838), (52, 29906575), (53, 29342300), (65, 23925260), (100, 15551419), (106, 14671150), (130, 11962630), (212, 7335575), (260, 5981315), (265, 5868460), (325, 4785052), (530, 2934230), (650, 2392526), (689, 2257100), (1060, 1467115), (1300, 1196263), (1325, 1173692), (1378, 1128550), (2650, 586846), (2756, 564275), (3445, 451420), (5300, 293423), (6890, 225710), (13780, 112855), (17225, 90284), (22571, 68900), (34450, 45142)]