82105020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{929}}^1$

素因数の和:1435

約数の個数: 72

約数和(自身を含む): 249827760

約数和(自身を除く): 167722740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 491, 929, 982, 1473, 1858, 1964, 2455, 2787, 2946, 3716, 4419, 4645, 4910, 5574, 5892, 7365, 8361, 8838, 9290, 9820, 11148, 13935, 14730, 16722, 17676, 18580, 22095, 27870, 29460, 33444, 41805, 44190, 55740, 83610, 88380, 167220, 456139, 912278, 1368417, 1824556, 2280695, 2736834, 4105251, 4561390, 5473668, 6842085, 8210502, 9122780, 13684170, 16421004, 20526255, 27368340, 41052510, 82105020]

約数ペア:

[(1, 82105020), (2, 41052510), (3, 27368340), (4, 20526255), (5, 16421004), (6, 13684170), (9, 9122780), (10, 8210502), (12, 6842085), (15, 5473668), (18, 4561390), (20, 4105251), (30, 2736834), (36, 2280695), (45, 1824556), (60, 1368417), (90, 912278), (180, 456139), (491, 167220), (929, 88380), (982, 83610), (1473, 55740), (1858, 44190), (1964, 41805), (2455, 33444), (2787, 29460), (2946, 27870), (3716, 22095), (4419, 18580), (4645, 17676), (4910, 16722), (5574, 14730), (5892, 13935), (7365, 11148), (8361, 9820), (8838, 9290)]