80720460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10429}}^1$

素因数の和:10487

約数の個数: 72

約数和(自身を含む): 250570320

約数和(自身を除く): 169849860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 10429, 20858, 31287, 41716, 52145, 62574, 93861, 104290, 125148, 156435, 187722, 208580, 312870, 375444, 448447, 469305, 625740, 896894, 938610, 1345341, 1793788, 1877220, 2242235, 2690682, 4036023, 4484470, 5381364, 6726705, 8072046, 8968940, 13453410, 16144092, 20180115, 26906820, 40360230, 80720460]

約数ペア:

[(1, 80720460), (2, 40360230), (3, 26906820), (4, 20180115), (5, 16144092), (6, 13453410), (9, 8968940), (10, 8072046), (12, 6726705), (15, 5381364), (18, 4484470), (20, 4036023), (30, 2690682), (36, 2242235), (43, 1877220), (45, 1793788), (60, 1345341), (86, 938610), (90, 896894), (129, 625740), (172, 469305), (180, 448447), (215, 375444), (258, 312870), (387, 208580), (430, 187722), (516, 156435), (645, 125148), (774, 104290), (860, 93861), (1290, 62574), (1548, 52145), (1935, 41716), (2580, 31287), (3870, 20858), (7740, 10429)]