401050480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{263849}}^1$

素因数の和:263881

約数の個数: 40

約数和(自身を含む): 981522000

約数和(自身を除く): 580471520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 263849, 527698, 1055396, 1319245, 2110792, 2638490, 4221584, 5013131, 5276980, 10026262, 10553960, 20052524, 21107920, 25065655, 40105048, 50131310, 80210096, 100262620, 200525240, 401050480]

約数ペア:

[(1, 401050480), (2, 200525240), (4, 100262620), (5, 80210096), (8, 50131310), (10, 40105048), (16, 25065655), (19, 21107920), (20, 20052524), (38, 10553960), (40, 10026262), (76, 5276980), (80, 5013131), (95, 4221584), (152, 2638490), (190, 2110792), (304, 1319245), (380, 1055396), (760, 527698), (1520, 263849)]