678497680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1211603}}^1$

素因数の和:1211623

約数の個数: 40

約数和(自身を含む): 1802866752

約数和(自身を除く): 1124369072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1211603, 2423206, 4846412, 6058015, 8481221, 9692824, 12116030, 16962442, 19385648, 24232060, 33924884, 42406105, 48464120, 67849768, 84812210, 96928240, 135699536, 169624420, 339248840, 678497680]

約数ペア:

[(1, 678497680), (2, 339248840), (4, 169624420), (5, 135699536), (7, 96928240), (8, 84812210), (10, 67849768), (14, 48464120), (16, 42406105), (20, 33924884), (28, 24232060), (35, 19385648), (40, 16962442), (56, 12116030), (70, 9692824), (80, 8481221), (112, 6058015), (140, 4846412), (280, 2423206), (560, 1211603)]