641051880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{763157}}^1$

素因数の和:763178

約数の個数: 64

約数和(自身を含む): 2197895040

約数和(自身を除く): 1556843160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 763157, 1526314, 2289471, 3052628, 3815785, 4578942, 5342099, 6105256, 7631570, 9157884, 10684198, 11447355, 15263140, 16026297, 18315768, 21368396, 22894710, 26710495, 30526280, 32052594, 42736792, 45789420, 53420990, 64105188, 80131485, 91578840, 106841980, 128210376, 160262970, 213683960, 320525940, 641051880]

約数ペア:

[(1, 641051880), (2, 320525940), (3, 213683960), (4, 160262970), (5, 128210376), (6, 106841980), (7, 91578840), (8, 80131485), (10, 64105188), (12, 53420990), (14, 45789420), (15, 42736792), (20, 32052594), (21, 30526280), (24, 26710495), (28, 22894710), (30, 21368396), (35, 18315768), (40, 16026297), (42, 15263140), (56, 11447355), (60, 10684198), (70, 9157884), (84, 7631570), (105, 6105256), (120, 5342099), (140, 4578942), (168, 3815785), (210, 3052628), (280, 2289471), (420, 1526314), (840, 763157)]