64479560

素因数分解:

$2^3\times 5^1\times {\mathrm{967}}^1\times {\mathrm{1667}}^1$

素因数の和:2645

約数の個数: 32

約数和(自身を含む): 145316160

約数和(自身を除く): 80836600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 967, 1667, 1934, 3334, 3868, 4835, 6668, 7736, 8335, 9670, 13336, 16670, 19340, 33340, 38680, 66680, 1611989, 3223978, 6447956, 8059945, 12895912, 16119890, 32239780, 64479560]

約数ペア:

[(1, 64479560), (2, 32239780), (4, 16119890), (5, 12895912), (8, 8059945), (10, 6447956), (20, 3223978), (40, 1611989), (967, 66680), (1667, 38680), (1934, 33340), (3334, 19340), (3868, 16670), (4835, 13336), (6668, 9670), (7736, 8335)]