1556820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^2$

素因数の和:83

約数の個数: 90

約数和(自身を含む): 5046426

約数和(自身を除く): 3489606

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 465, 540, 558, 620, 810, 837, 930, 961, 1116, 1395, 1620, 1674, 1860, 1922, 2511, 2790, 2883, 3348, 3844, 4185, 4805, 5022, 5580, 5766, 8370, 8649, 9610, 10044, 11532, 12555, 14415, 16740, 17298, 19220, 25110, 25947, 28830, 34596, 43245, 50220, 51894, 57660, 77841, 86490, 103788, 129735, 155682, 172980, 259470, 311364, 389205, 518940, 778410, 1556820]

約数ペア:

[(1, 1556820), (2, 778410), (3, 518940), (4, 389205), (5, 311364), (6, 259470), (9, 172980), (10, 155682), (12, 129735), (15, 103788), (18, 86490), (20, 77841), (27, 57660), (30, 51894), (31, 50220), (36, 43245), (45, 34596), (54, 28830), (60, 25947), (62, 25110), (81, 19220), (90, 17298), (93, 16740), (108, 14415), (124, 12555), (135, 11532), (155, 10044), (162, 9610), (180, 8649), (186, 8370), (270, 5766), (279, 5580), (310, 5022), (324, 4805), (372, 4185), (405, 3844), (465, 3348), (540, 2883), (558, 2790), (620, 2511), (810, 1922), (837, 1860), (930, 1674), (961, 1620), (1116, 1395)]