30407440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{7757}}^1$

素因数の和:7784

約数の個数: 60

約数和(自身を含む): 82250316

約数和(自身を除く): 51842876

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 7757, 15514, 31028, 38785, 54299, 62056, 77570, 108598, 124112, 155140, 217196, 271495, 310280, 380093, 434392, 542990, 620560, 760186, 868784, 1085980, 1520372, 1900465, 2171960, 3040744, 3800930, 4343920, 6081488, 7601860, 15203720, 30407440]

約数ペア:

[(1, 30407440), (2, 15203720), (4, 7601860), (5, 6081488), (7, 4343920), (8, 3800930), (10, 3040744), (14, 2171960), (16, 1900465), (20, 1520372), (28, 1085980), (35, 868784), (40, 760186), (49, 620560), (56, 542990), (70, 434392), (80, 380093), (98, 310280), (112, 271495), (140, 217196), (196, 155140), (245, 124112), (280, 108598), (392, 77570), (490, 62056), (560, 54299), (784, 38785), (980, 31028), (1960, 15514), (3920, 7757)]