123663380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{631}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 267563520

約数和(自身を除く): 143900140

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 239, 410, 478, 631, 820, 956, 1195, 1262, 2390, 2524, 3155, 4780, 6310, 9799, 12620, 19598, 25871, 39196, 48995, 51742, 97990, 103484, 129355, 150809, 195980, 258710, 301618, 517420, 603236, 754045, 1508090, 3016180, 6183169, 12366338, 24732676, 30915845, 61831690, 123663380]

約数ペア:

[(1, 123663380), (2, 61831690), (4, 30915845), (5, 24732676), (10, 12366338), (20, 6183169), (41, 3016180), (82, 1508090), (164, 754045), (205, 603236), (239, 517420), (410, 301618), (478, 258710), (631, 195980), (820, 150809), (956, 129355), (1195, 103484), (1262, 97990), (2390, 51742), (2524, 48995), (3155, 39196), (4780, 25871), (6310, 19598), (9799, 12620)]