128250920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{458039}}^1$

素因数の和:458057

約数の個数: 32

約数和(自身を含む): 329788800

約数和(自身を除く): 201537880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 458039, 916078, 1832156, 2290195, 3206273, 3664312, 4580390, 6412546, 9160780, 12825092, 16031365, 18321560, 25650184, 32062730, 64125460, 128250920]

約数ペア:

[(1, 128250920), (2, 64125460), (4, 32062730), (5, 25650184), (7, 18321560), (8, 16031365), (10, 12825092), (14, 9160780), (20, 6412546), (28, 4580390), (35, 3664312), (40, 3206273), (56, 2290195), (70, 1832156), (140, 916078), (280, 458039)]