389968620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{3271}}^1$

素因数の和:5270

約数の個数: 48

約数和(自身を含む): 1092795648

約数和(自身を除く): 702827028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1987, 3271, 3974, 5961, 6542, 7948, 9813, 9935, 11922, 13084, 16355, 19626, 19870, 23844, 29805, 32710, 39252, 39740, 49065, 59610, 65420, 98130, 119220, 196260, 6499477, 12998954, 19498431, 25997908, 32497385, 38996862, 64994770, 77993724, 97492155, 129989540, 194984310, 389968620]

約数ペア:

[(1, 389968620), (2, 194984310), (3, 129989540), (4, 97492155), (5, 77993724), (6, 64994770), (10, 38996862), (12, 32497385), (15, 25997908), (20, 19498431), (30, 12998954), (60, 6499477), (1987, 196260), (3271, 119220), (3974, 98130), (5961, 65420), (6542, 59610), (7948, 49065), (9813, 39740), (9935, 39252), (11922, 32710), (13084, 29805), (16355, 23844), (19626, 19870)]