81796140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23917}}^1$

素因数の和:23951

約数の個数: 72

約数和(自身を含む): 261184560

約数和(自身を除く): 179388420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 23917, 47834, 71751, 95668, 119585, 143502, 215253, 239170, 287004, 358755, 430506, 454423, 478340, 717510, 861012, 908846, 1076265, 1363269, 1435020, 1817692, 2152530, 2272115, 2726538, 4089807, 4305060, 4544230, 5453076, 6816345, 8179614, 9088460, 13632690, 16359228, 20449035, 27265380, 40898070, 81796140]

約数ペア:

[(1, 81796140), (2, 40898070), (3, 27265380), (4, 20449035), (5, 16359228), (6, 13632690), (9, 9088460), (10, 8179614), (12, 6816345), (15, 5453076), (18, 4544230), (19, 4305060), (20, 4089807), (30, 2726538), (36, 2272115), (38, 2152530), (45, 1817692), (57, 1435020), (60, 1363269), (76, 1076265), (90, 908846), (95, 861012), (114, 717510), (171, 478340), (180, 454423), (190, 430506), (228, 358755), (285, 287004), (342, 239170), (380, 215253), (570, 143502), (684, 119585), (855, 95668), (1140, 71751), (1710, 47834), (3420, 23917)]