1666871240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1013}}^1\times {\mathrm{1327}}^1$

素因数の和:2382

約数の個数: 64

約数和(自身を含む): 3878184960

約数和(自身を除く): 2211313720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1013, 1240, 1327, 2026, 2654, 4052, 5065, 5308, 6635, 8104, 10130, 10616, 13270, 20260, 26540, 31403, 40520, 41137, 53080, 62806, 82274, 125612, 157015, 164548, 205685, 251224, 314030, 329096, 411370, 628060, 822740, 1256120, 1344251, 1645480, 2688502, 5377004, 6721255, 10754008, 13442510, 26885020, 41671781, 53770040, 83343562, 166687124, 208358905, 333374248, 416717810, 833435620, 1666871240]

約数ペア:

[(1, 1666871240), (2, 833435620), (4, 416717810), (5, 333374248), (8, 208358905), (10, 166687124), (20, 83343562), (31, 53770040), (40, 41671781), (62, 26885020), (124, 13442510), (155, 10754008), (248, 6721255), (310, 5377004), (620, 2688502), (1013, 1645480), (1240, 1344251), (1327, 1256120), (2026, 822740), (2654, 628060), (4052, 411370), (5065, 329096), (5308, 314030), (6635, 251224), (8104, 205685), (10130, 164548), (10616, 157015), (13270, 125612), (20260, 82274), (26540, 62806), (31403, 53080), (40520, 41137)]