18477680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:298

約数の個数: 80

約数和(自身を含む): 46976160

約数和(自身を除く): 28498480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 109, 130, 163, 208, 218, 260, 326, 436, 520, 545, 652, 815, 872, 1040, 1090, 1304, 1417, 1630, 1744, 2119, 2180, 2608, 2834, 3260, 4238, 4360, 5668, 6520, 7085, 8476, 8720, 10595, 11336, 13040, 14170, 16952, 17767, 21190, 22672, 28340, 33904, 35534, 42380, 56680, 71068, 84760, 88835, 113360, 142136, 169520, 177670, 230971, 284272, 355340, 461942, 710680, 923884, 1154855, 1421360, 1847768, 2309710, 3695536, 4619420, 9238840, 18477680]

約数ペア:

[(1, 18477680), (2, 9238840), (4, 4619420), (5, 3695536), (8, 2309710), (10, 1847768), (13, 1421360), (16, 1154855), (20, 923884), (26, 710680), (40, 461942), (52, 355340), (65, 284272), (80, 230971), (104, 177670), (109, 169520), (130, 142136), (163, 113360), (208, 88835), (218, 84760), (260, 71068), (326, 56680), (436, 42380), (520, 35534), (545, 33904), (652, 28340), (815, 22672), (872, 21190), (1040, 17767), (1090, 16952), (1304, 14170), (1417, 13040), (1630, 11336), (1744, 10595), (2119, 8720), (2180, 8476), (2608, 7085), (2834, 6520), (3260, 5668), (4238, 4360)]