28180116

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:506

約数の個数: 96

約数和(自身を含む): 79564800

約数和(自身を除く): 51384684

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 31, 36, 38, 54, 57, 62, 76, 93, 108, 114, 124, 171, 186, 228, 279, 342, 372, 443, 513, 558, 589, 684, 837, 886, 1026, 1116, 1178, 1329, 1674, 1767, 1772, 2052, 2356, 2658, 3348, 3534, 3987, 5301, 5316, 7068, 7974, 8417, 10602, 11961, 13733, 15903, 15948, 16834, 21204, 23922, 25251, 27466, 31806, 33668, 41199, 47844, 50502, 54932, 63612, 75753, 82398, 101004, 123597, 151506, 164796, 227259, 247194, 260927, 303012, 370791, 454518, 494388, 521854, 741582, 782781, 909036, 1043708, 1483164, 1565562, 2348343, 3131124, 4696686, 7045029, 9393372, 14090058, 28180116]

約数ペア:

[(1, 28180116), (2, 14090058), (3, 9393372), (4, 7045029), (6, 4696686), (9, 3131124), (12, 2348343), (18, 1565562), (19, 1483164), (27, 1043708), (31, 909036), (36, 782781), (38, 741582), (54, 521854), (57, 494388), (62, 454518), (76, 370791), (93, 303012), (108, 260927), (114, 247194), (124, 227259), (171, 164796), (186, 151506), (228, 123597), (279, 101004), (342, 82398), (372, 75753), (443, 63612), (513, 54932), (558, 50502), (589, 47844), (684, 41199), (837, 33668), (886, 31806), (1026, 27466), (1116, 25251), (1178, 23922), (1329, 21204), (1674, 16834), (1767, 15948), (1772, 15903), (2052, 13733), (2356, 11961), (2658, 10602), (3348, 8417), (3534, 7974), (3987, 7068), (5301, 5316)]