20416290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:827

約数の個数: 64

約数和(自身を含む): 52392960

約数和(自身を除く): 31976670

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, 757, 870, 899, 930, 1514, 1798, 2271, 2697, 3785, 4495, 4542, 5394, 7570, 8990, 11355, 13485, 21953, 22710, 23467, 26970, 43906, 46934, 65859, 70401, 109765, 117335, 131718, 140802, 219530, 234670, 329295, 352005, 658590, 680543, 704010, 1361086, 2041629, 3402715, 4083258, 6805430, 10208145, 20416290]

約数ペア:

[(1, 20416290), (2, 10208145), (3, 6805430), (5, 4083258), (6, 3402715), (10, 2041629), (15, 1361086), (29, 704010), (30, 680543), (31, 658590), (58, 352005), (62, 329295), (87, 234670), (93, 219530), (145, 140802), (155, 131718), (174, 117335), (186, 109765), (290, 70401), (310, 65859), (435, 46934), (465, 43906), (757, 26970), (870, 23467), (899, 22710), (930, 21953), (1514, 13485), (1798, 11355), (2271, 8990), (2697, 7570), (3785, 5394), (4495, 4542)]