21612580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3169}}^1$

素因数の和:3220

約数の個数: 48

約数和(自身を含む): 51125760

約数和(自身を除く): 29513180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3169, 3410, 6338, 6820, 12676, 15845, 31690, 34859, 63380, 69718, 98239, 139436, 174295, 196478, 348590, 392956, 491195, 697180, 982390, 1080629, 1964780, 2161258, 4322516, 5403145, 10806290, 21612580]

約数ペア:

[(1, 21612580), (2, 10806290), (4, 5403145), (5, 4322516), (10, 2161258), (11, 1964780), (20, 1080629), (22, 982390), (31, 697180), (44, 491195), (55, 392956), (62, 348590), (110, 196478), (124, 174295), (155, 139436), (220, 98239), (310, 69718), (341, 63380), (620, 34859), (682, 31690), (1364, 15845), (1705, 12676), (3169, 6820), (3410, 6338)]