64479680

素因数分解:

$2^6\times 5^1\times {\mathrm{201499}}^1$

素因数の和:201516

約数の個数: 28

約数和(自身を含む): 153543000

約数和(自身を除く): 89063320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 201499, 402998, 805996, 1007495, 1611992, 2014990, 3223984, 4029980, 6447968, 8059960, 12895936, 16119920, 32239840, 64479680]

約数ペア:

[(1, 64479680), (2, 32239840), (4, 16119920), (5, 12895936), (8, 8059960), (10, 6447968), (16, 4029980), (20, 3223984), (32, 2014990), (40, 1611992), (64, 1007495), (80, 805996), (160, 402998), (320, 201499)]