142479280

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3499}}^1$

素因数の和:4021

約数の個数: 40

約数和(自身を含む): 332010000

約数和(自身を除く): 189530720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 2036, 2545, 3499, 4072, 5090, 6998, 8144, 10180, 13996, 17495, 20360, 27992, 34990, 40720, 55984, 69980, 139960, 279920, 1780991, 3561982, 7123964, 8904955, 14247928, 17809910, 28495856, 35619820, 71239640, 142479280]

約数ペア:

[(1, 142479280), (2, 71239640), (4, 35619820), (5, 28495856), (8, 17809910), (10, 14247928), (16, 8904955), (20, 7123964), (40, 3561982), (80, 1780991), (509, 279920), (1018, 139960), (2036, 69980), (2545, 55984), (3499, 40720), (4072, 34990), (5090, 27992), (6998, 20360), (8144, 17495), (10180, 13996)]