31811580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5701}}^1$

素因数の和:5747

約数の個数: 72

約数和(自身を含む): 99625344

約数和(自身を除く): 67813764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 5701, 11402, 17103, 22804, 28505, 34206, 51309, 57010, 68412, 85515, 102618, 114020, 171030, 176731, 205236, 256545, 342060, 353462, 513090, 530193, 706924, 883655, 1026180, 1060386, 1590579, 1767310, 2120772, 2650965, 3181158, 3534620, 5301930, 6362316, 7952895, 10603860, 15905790, 31811580]

約数ペア:

[(1, 31811580), (2, 15905790), (3, 10603860), (4, 7952895), (5, 6362316), (6, 5301930), (9, 3534620), (10, 3181158), (12, 2650965), (15, 2120772), (18, 1767310), (20, 1590579), (30, 1060386), (31, 1026180), (36, 883655), (45, 706924), (60, 530193), (62, 513090), (90, 353462), (93, 342060), (124, 256545), (155, 205236), (180, 176731), (186, 171030), (279, 114020), (310, 102618), (372, 85515), (465, 68412), (558, 57010), (620, 51309), (930, 34206), (1116, 28505), (1395, 22804), (1860, 17103), (2790, 11402), (5580, 5701)]