207818900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{14951}}^1$

素因数の和:15104

約数の個数: 36

約数和(自身を含む): 454241760

約数和(自身を除く): 246422860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 2780, 3475, 6950, 13900, 14951, 29902, 59804, 74755, 149510, 299020, 373775, 747550, 1495100, 2078189, 4156378, 8312756, 10390945, 20781890, 41563780, 51954725, 103909450, 207818900]

約数ペア:

[(1, 207818900), (2, 103909450), (4, 51954725), (5, 41563780), (10, 20781890), (20, 10390945), (25, 8312756), (50, 4156378), (100, 2078189), (139, 1495100), (278, 747550), (556, 373775), (695, 299020), (1390, 149510), (2780, 74755), (3475, 59804), (6950, 29902), (13900, 14951)]