86391280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 214673760

約数和(自身を除く): 128282480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 139, 170, 272, 278, 340, 457, 556, 680, 695, 914, 1112, 1360, 1390, 1828, 2224, 2285, 2363, 2780, 3656, 4570, 4726, 5560, 7312, 7769, 9140, 9452, 11120, 11815, 15538, 18280, 18904, 23630, 31076, 36560, 37808, 38845, 47260, 62152, 63523, 77690, 94520, 124304, 127046, 155380, 189040, 254092, 310760, 317615, 508184, 621520, 635230, 1016368, 1079891, 1270460, 2159782, 2540920, 4319564, 5081840, 5399455, 8639128, 10798910, 17278256, 21597820, 43195640, 86391280]

約数ペア:

[(1, 86391280), (2, 43195640), (4, 21597820), (5, 17278256), (8, 10798910), (10, 8639128), (16, 5399455), (17, 5081840), (20, 4319564), (34, 2540920), (40, 2159782), (68, 1270460), (80, 1079891), (85, 1016368), (136, 635230), (139, 621520), (170, 508184), (272, 317615), (278, 310760), (340, 254092), (457, 189040), (556, 155380), (680, 127046), (695, 124304), (914, 94520), (1112, 77690), (1360, 63523), (1390, 62152), (1828, 47260), (2224, 38845), (2285, 37808), (2363, 36560), (2780, 31076), (3656, 23630), (4570, 18904), (4726, 18280), (5560, 15538), (7312, 11815), (7769, 11120), (9140, 9452)]