768310820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{5557}}^1$

素因数の和:5820

約数の個数: 48

約数和(自身を含む): 1673269248

約数和(自身を除く): 904958428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 223, 310, 446, 620, 892, 1115, 2230, 4460, 5557, 6913, 11114, 13826, 22228, 27652, 27785, 34565, 55570, 69130, 111140, 138260, 172267, 344534, 689068, 861335, 1239211, 1722670, 2478422, 3445340, 4956844, 6196055, 12392110, 24784220, 38415541, 76831082, 153662164, 192077705, 384155410, 768310820]

約数ペア:

[(1, 768310820), (2, 384155410), (4, 192077705), (5, 153662164), (10, 76831082), (20, 38415541), (31, 24784220), (62, 12392110), (124, 6196055), (155, 4956844), (223, 3445340), (310, 2478422), (446, 1722670), (620, 1239211), (892, 861335), (1115, 689068), (2230, 344534), (4460, 172267), (5557, 138260), (6913, 111140), (11114, 69130), (13826, 55570), (22228, 34565), (27652, 27785)]