20847810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{773}}^1$

素因数の和:843

約数の個数: 64

約数和(自身を含む): 53498880

約数和(自身を除く): 32651070

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 31, 58, 62, 87, 93, 145, 155, 174, 186, 290, 310, 435, 465, 773, 870, 899, 930, 1546, 1798, 2319, 2697, 3865, 4495, 4638, 5394, 7730, 8990, 11595, 13485, 22417, 23190, 23963, 26970, 44834, 47926, 67251, 71889, 112085, 119815, 134502, 143778, 224170, 239630, 336255, 359445, 672510, 694927, 718890, 1389854, 2084781, 3474635, 4169562, 6949270, 10423905, 20847810]

約数ペア:

[(1, 20847810), (2, 10423905), (3, 6949270), (5, 4169562), (6, 3474635), (10, 2084781), (15, 1389854), (29, 718890), (30, 694927), (31, 672510), (58, 359445), (62, 336255), (87, 239630), (93, 224170), (145, 143778), (155, 134502), (174, 119815), (186, 112085), (290, 71889), (310, 67251), (435, 47926), (465, 44834), (773, 26970), (870, 23963), (899, 23190), (930, 22417), (1546, 13485), (1798, 11595), (2319, 8990), (2697, 7730), (3865, 5394), (4495, 4638)]