15315880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6277}}^1$

素因数の和:6349

約数の個数: 32

約数和(自身を含む): 35031240

約数和(自身を除く): 19715360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 6277, 12554, 25108, 31385, 50216, 62770, 125540, 251080, 382897, 765794, 1531588, 1914485, 3063176, 3828970, 7657940, 15315880]

約数ペア:

[(1, 15315880), (2, 7657940), (4, 3828970), (5, 3063176), (8, 1914485), (10, 1531588), (20, 765794), (40, 382897), (61, 251080), (122, 125540), (244, 62770), (305, 50216), (488, 31385), (610, 25108), (1220, 12554), (2440, 6277)]