18668210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 39657600

約数和(自身を除く): 20989390

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 67, 85, 110, 134, 149, 170, 187, 298, 335, 374, 670, 737, 745, 935, 1139, 1474, 1490, 1639, 1870, 2278, 2533, 3278, 3685, 5066, 5695, 7370, 8195, 9983, 11390, 12529, 12665, 16390, 19966, 25058, 25330, 27863, 49915, 55726, 62645, 99830, 109813, 125290, 139315, 169711, 219626, 278630, 339422, 549065, 848555, 1098130, 1697110, 1866821, 3733642, 9334105, 18668210]

約数ペア:

[(1, 18668210), (2, 9334105), (5, 3733642), (10, 1866821), (11, 1697110), (17, 1098130), (22, 848555), (34, 549065), (55, 339422), (67, 278630), (85, 219626), (110, 169711), (134, 139315), (149, 125290), (170, 109813), (187, 99830), (298, 62645), (335, 55726), (374, 49915), (670, 27863), (737, 25330), (745, 25058), (935, 19966), (1139, 16390), (1474, 12665), (1490, 12529), (1639, 11390), (1870, 9983), (2278, 8195), (2533, 7370), (3278, 5695), (3685, 5066)]