128230840

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{13999}}^1$

素因数の和:14239

約数の個数: 32

約数和(自身を含む): 289800000

約数和(自身を除く): 161569160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 4580, 9160, 13999, 27998, 55996, 69995, 111992, 139990, 279980, 559960, 3205771, 6411542, 12823084, 16028855, 25646168, 32057710, 64115420, 128230840]

約数ペア:

[(1, 128230840), (2, 64115420), (4, 32057710), (5, 25646168), (8, 16028855), (10, 12823084), (20, 6411542), (40, 3205771), (229, 559960), (458, 279980), (916, 139990), (1145, 111992), (1832, 69995), (2290, 55996), (4580, 27998), (9160, 13999)]