916241650

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{1999}}^1$

素因数の和:2203

約数の個数: 48

約数和(自身を含む): 1740960000

約数和(自身を除く): 824718350

約数列:

[1, 2, 5, 10, 25, 50, 89, 103, 178, 206, 445, 515, 890, 1030, 1999, 2225, 2575, 3998, 4450, 5150, 9167, 9995, 18334, 19990, 45835, 49975, 91670, 99950, 177911, 205897, 229175, 355822, 411794, 458350, 889555, 1029485, 1779110, 2058970, 4447775, 5147425, 8895550, 10294850, 18324833, 36649666, 91624165, 183248330, 458120825, 916241650]

約数ペア:

[(1, 916241650), (2, 458120825), (5, 183248330), (10, 91624165), (25, 36649666), (50, 18324833), (89, 10294850), (103, 8895550), (178, 5147425), (206, 4447775), (445, 2058970), (515, 1779110), (890, 1029485), (1030, 889555), (1999, 458350), (2225, 411794), (2575, 355822), (3998, 229175), (4450, 205897), (5150, 177911), (9167, 99950), (9995, 91670), (18334, 49975), (19990, 45835)]