18893340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2441}}^1$

素因数の和:2499

約数の個数: 72

約数和(自身を含む): 58666608

約数和(自身を除く): 39773268

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, 2441, 2580, 3870, 4882, 7323, 7740, 9764, 12205, 14646, 21969, 24410, 29292, 36615, 43938, 48820, 73230, 87876, 104963, 109845, 146460, 209926, 219690, 314889, 419852, 439380, 524815, 629778, 944667, 1049630, 1259556, 1574445, 1889334, 2099260, 3148890, 3778668, 4723335, 6297780, 9446670, 18893340]

約数ペア:

[(1, 18893340), (2, 9446670), (3, 6297780), (4, 4723335), (5, 3778668), (6, 3148890), (9, 2099260), (10, 1889334), (12, 1574445), (15, 1259556), (18, 1049630), (20, 944667), (30, 629778), (36, 524815), (43, 439380), (45, 419852), (60, 314889), (86, 219690), (90, 209926), (129, 146460), (172, 109845), (180, 104963), (215, 87876), (258, 73230), (387, 48820), (430, 43938), (516, 36615), (645, 29292), (774, 24410), (860, 21969), (1290, 14646), (1548, 12205), (1935, 9764), (2441, 7740), (2580, 7323), (3870, 4882)]