1312609940

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{383}}^1\times {\mathrm{491}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 2777241600

約数和(自身を除く): 1464631660

約数列:

[1, 2, 4, 5, 10, 20, 349, 383, 491, 698, 766, 982, 1396, 1532, 1745, 1915, 1964, 2455, 3490, 3830, 4910, 6980, 7660, 9820, 133667, 171359, 188053, 267334, 342718, 376106, 534668, 668335, 685436, 752212, 856795, 940265, 1336670, 1713590, 1880530, 2673340, 3427180, 3761060, 65630497, 131260994, 262521988, 328152485, 656304970, 1312609940]

約数ペア:

[(1, 1312609940), (2, 656304970), (4, 328152485), (5, 262521988), (10, 131260994), (20, 65630497), (349, 3761060), (383, 3427180), (491, 2673340), (698, 1880530), (766, 1713590), (982, 1336670), (1396, 940265), (1532, 856795), (1745, 752212), (1915, 685436), (1964, 668335), (2455, 534668), (3490, 376106), (3830, 342718), (4910, 267334), (6980, 188053), (7660, 171359), (9820, 133667)]