63664360

素因数分解:

$2^3\times 5^1\times {\mathrm{797}}^1\times {\mathrm{1997}}^1$

素因数の和:2805

約数の個数: 32

約数和(自身を含む): 143496360

約数和(自身を除く): 79832000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 797, 1594, 1997, 3188, 3985, 3994, 6376, 7970, 7988, 9985, 15940, 15976, 19970, 31880, 39940, 79880, 1591609, 3183218, 6366436, 7958045, 12732872, 15916090, 31832180, 63664360]

約数ペア:

[(1, 63664360), (2, 31832180), (4, 15916090), (5, 12732872), (8, 7958045), (10, 6366436), (20, 3183218), (40, 1591609), (797, 79880), (1594, 39940), (1997, 31880), (3188, 19970), (3985, 15976), (3994, 15940), (6376, 9985), (7970, 7988)]