128505920

素因数分解:

$2^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{7577}}^1$

素因数の和:7647

約数の個数: 56

約数和(自身を含む): 311819544

約数和(自身を除く): 183313624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 160, 212, 265, 320, 424, 530, 848, 1060, 1696, 2120, 3392, 4240, 7577, 8480, 15154, 16960, 30308, 37885, 60616, 75770, 121232, 151540, 242464, 303080, 401581, 484928, 606160, 803162, 1212320, 1606324, 2007905, 2424640, 3212648, 4015810, 6425296, 8031620, 12850592, 16063240, 25701184, 32126480, 64252960, 128505920]

約数ペア:

[(1, 128505920), (2, 64252960), (4, 32126480), (5, 25701184), (8, 16063240), (10, 12850592), (16, 8031620), (20, 6425296), (32, 4015810), (40, 3212648), (53, 2424640), (64, 2007905), (80, 1606324), (106, 1212320), (160, 803162), (212, 606160), (265, 484928), (320, 401581), (424, 303080), (530, 242464), (848, 151540), (1060, 121232), (1696, 75770), (2120, 60616), (3392, 37885), (4240, 30308), (7577, 16960), (8480, 15154)]