20750200

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^2\times {\mathrm{359}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 51391800

約数和(自身を除く): 30641600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 289, 340, 359, 425, 578, 680, 718, 850, 1156, 1436, 1445, 1700, 1795, 2312, 2872, 2890, 3400, 3590, 5780, 6103, 7180, 7225, 8975, 11560, 12206, 14360, 14450, 17950, 24412, 28900, 30515, 35900, 48824, 57800, 61030, 71800, 103751, 122060, 152575, 207502, 244120, 305150, 415004, 518755, 610300, 830008, 1037510, 1220600, 2075020, 2593775, 4150040, 5187550, 10375100, 20750200]

約数ペア:

[(1, 20750200), (2, 10375100), (4, 5187550), (5, 4150040), (8, 2593775), (10, 2075020), (17, 1220600), (20, 1037510), (25, 830008), (34, 610300), (40, 518755), (50, 415004), (68, 305150), (85, 244120), (100, 207502), (136, 152575), (170, 122060), (200, 103751), (289, 71800), (340, 61030), (359, 57800), (425, 48824), (578, 35900), (680, 30515), (718, 28900), (850, 24412), (1156, 17950), (1436, 14450), (1445, 14360), (1700, 12206), (1795, 11560), (2312, 8975), (2872, 7225), (2890, 7180), (3400, 6103), (3590, 5780)]