665640

素因数分解:

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

素因数の和:103

約数の個数: 72

約数和(自身を含む): 2214810

約数和(自身を除く): 1549170

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 43, 45, 60, 72, 86, 90, 120, 129, 172, 180, 215, 258, 344, 360, 387, 430, 516, 645, 774, 860, 1032, 1290, 1548, 1720, 1849, 1935, 2580, 3096, 3698, 3870, 5160, 5547, 7396, 7740, 9245, 11094, 14792, 15480, 16641, 18490, 22188, 27735, 33282, 36980, 44376, 55470, 66564, 73960, 83205, 110940, 133128, 166410, 221880, 332820, 665640]

約数ペア:

[(1, 665640), (2, 332820), (3, 221880), (4, 166410), (5, 133128), (6, 110940), (8, 83205), (9, 73960), (10, 66564), (12, 55470), (15, 44376), (18, 36980), (20, 33282), (24, 27735), (30, 22188), (36, 18490), (40, 16641), (43, 15480), (45, 14792), (60, 11094), (72, 9245), (86, 7740), (90, 7396), (120, 5547), (129, 5160), (172, 3870), (180, 3698), (215, 3096), (258, 2580), (344, 1935), (360, 1849), (387, 1720), (430, 1548), (516, 1290), (645, 1032), (774, 860)]