18083220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 52155936

約数和(自身を除く): 34072716

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 163, 172, 215, 258, 326, 430, 489, 516, 645, 652, 815, 860, 978, 1290, 1630, 1849, 1956, 2445, 2580, 3260, 3698, 4890, 5547, 7009, 7396, 9245, 9780, 11094, 14018, 18490, 21027, 22188, 27735, 28036, 35045, 36980, 42054, 55470, 70090, 84108, 105135, 110940, 140180, 210270, 301387, 420540, 602774, 904161, 1205548, 1506935, 1808322, 3013870, 3616644, 4520805, 6027740, 9041610, 18083220]

約数ペア:

[(1, 18083220), (2, 9041610), (3, 6027740), (4, 4520805), (5, 3616644), (6, 3013870), (10, 1808322), (12, 1506935), (15, 1205548), (20, 904161), (30, 602774), (43, 420540), (60, 301387), (86, 210270), (129, 140180), (163, 110940), (172, 105135), (215, 84108), (258, 70090), (326, 55470), (430, 42054), (489, 36980), (516, 35045), (645, 28036), (652, 27735), (815, 22188), (860, 21027), (978, 18490), (1290, 14018), (1630, 11094), (1849, 9780), (1956, 9245), (2445, 7396), (2580, 7009), (3260, 5547), (3698, 4890)]