123931908

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{443}}^1$

素因数の和:881

約数の個数: 72

約数和(自身を含む): 331312800

約数和(自身を除く): 207380892

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 409, 443, 684, 818, 886, 1227, 1329, 1636, 1772, 2454, 2658, 3681, 3987, 4908, 5316, 7362, 7771, 7974, 8417, 14724, 15542, 15948, 16834, 23313, 25251, 31084, 33668, 46626, 50502, 69939, 75753, 93252, 101004, 139878, 151506, 181187, 279756, 303012, 362374, 543561, 724748, 1087122, 1630683, 2174244, 3261366, 3442553, 6522732, 6885106, 10327659, 13770212, 20655318, 30982977, 41310636, 61965954, 123931908]

約数ペア:

[(1, 123931908), (2, 61965954), (3, 41310636), (4, 30982977), (6, 20655318), (9, 13770212), (12, 10327659), (18, 6885106), (19, 6522732), (36, 3442553), (38, 3261366), (57, 2174244), (76, 1630683), (114, 1087122), (171, 724748), (228, 543561), (342, 362374), (409, 303012), (443, 279756), (684, 181187), (818, 151506), (886, 139878), (1227, 101004), (1329, 93252), (1636, 75753), (1772, 69939), (2454, 50502), (2658, 46626), (3681, 33668), (3987, 31084), (4908, 25251), (5316, 23313), (7362, 16834), (7771, 15948), (7974, 15542), (8417, 14724)]