1555368980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{29581}}^1$

素因数の和:29840

約数の個数: 48

約数和(自身を含む): 3578238720

約数和(自身を除く): 2022869740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 239, 478, 956, 1195, 2390, 2629, 4780, 5258, 10516, 13145, 26290, 29581, 52580, 59162, 118324, 147905, 295810, 325391, 591620, 650782, 1301564, 1626955, 3253910, 6507820, 7069859, 14139718, 28279436, 35349295, 70698590, 77768449, 141397180, 155536898, 311073796, 388842245, 777684490, 1555368980]

約数ペア:

[(1, 1555368980), (2, 777684490), (4, 388842245), (5, 311073796), (10, 155536898), (11, 141397180), (20, 77768449), (22, 70698590), (44, 35349295), (55, 28279436), (110, 14139718), (220, 7069859), (239, 6507820), (478, 3253910), (956, 1626955), (1195, 1301564), (2390, 650782), (2629, 591620), (4780, 325391), (5258, 295810), (10516, 147905), (13145, 118324), (26290, 59162), (29581, 52580)]