20368440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1951}}^1$

素因数の和:1997

約数の個数: 96

約数和(自身を含む): 68515200

約数和(自身を除く): 48146760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 45, 58, 60, 72, 87, 90, 116, 120, 145, 174, 180, 232, 261, 290, 348, 360, 435, 522, 580, 696, 870, 1044, 1160, 1305, 1740, 1951, 2088, 2610, 3480, 3902, 5220, 5853, 7804, 9755, 10440, 11706, 15608, 17559, 19510, 23412, 29265, 35118, 39020, 46824, 56579, 58530, 70236, 78040, 87795, 113158, 117060, 140472, 169737, 175590, 226316, 234120, 282895, 339474, 351180, 452632, 509211, 565790, 678948, 702360, 848685, 1018422, 1131580, 1357896, 1697370, 2036844, 2263160, 2546055, 3394740, 4073688, 5092110, 6789480, 10184220, 20368440]

約数ペア:

[(1, 20368440), (2, 10184220), (3, 6789480), (4, 5092110), (5, 4073688), (6, 3394740), (8, 2546055), (9, 2263160), (10, 2036844), (12, 1697370), (15, 1357896), (18, 1131580), (20, 1018422), (24, 848685), (29, 702360), (30, 678948), (36, 565790), (40, 509211), (45, 452632), (58, 351180), (60, 339474), (72, 282895), (87, 234120), (90, 226316), (116, 175590), (120, 169737), (145, 140472), (174, 117060), (180, 113158), (232, 87795), (261, 78040), (290, 70236), (348, 58530), (360, 56579), (435, 46824), (522, 39020), (580, 35118), (696, 29265), (870, 23412), (1044, 19510), (1160, 17559), (1305, 15608), (1740, 11706), (1951, 10440), (2088, 9755), (2610, 7804), (3480, 5853), (3902, 5220)]