8909900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{641}}^1$

素因数の和:794

約数の個数: 36

約数和(自身を含む): 19503960

約数和(自身を除く): 10594060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 641, 695, 1282, 1390, 2564, 2780, 3205, 3475, 6410, 6950, 12820, 13900, 16025, 32050, 64100, 89099, 178198, 356396, 445495, 890990, 1781980, 2227475, 4454950, 8909900]

約数ペア:

[(1, 8909900), (2, 4454950), (4, 2227475), (5, 1781980), (10, 890990), (20, 445495), (25, 356396), (50, 178198), (100, 89099), (139, 64100), (278, 32050), (556, 16025), (641, 13900), (695, 12820), (1282, 6950), (1390, 6410), (2564, 3475), (2780, 3205)]