20963430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1429}}^1$

素因数の和:1605

約数の個数: 48

約数和(自身を含む): 54877680

約数和(自身を除く): 33914250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 163, 326, 489, 815, 978, 1429, 1467, 1630, 2445, 2858, 2934, 4287, 4890, 7145, 7335, 8574, 12861, 14290, 14670, 21435, 25722, 42870, 64305, 128610, 232927, 465854, 698781, 1164635, 1397562, 2096343, 2329270, 3493905, 4192686, 6987810, 10481715, 20963430]

約数ペア:

[(1, 20963430), (2, 10481715), (3, 6987810), (5, 4192686), (6, 3493905), (9, 2329270), (10, 2096343), (15, 1397562), (18, 1164635), (30, 698781), (45, 465854), (90, 232927), (163, 128610), (326, 64305), (489, 42870), (815, 25722), (978, 21435), (1429, 14670), (1467, 14290), (1630, 12861), (2445, 8574), (2858, 7335), (2934, 7145), (4287, 4890)]