15931880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20963}}^1$

素因数の和:20993

約数の個数: 32

約数和(自身を含む): 37735200

約数和(自身を除く): 21803320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 20963, 41926, 83852, 104815, 167704, 209630, 398297, 419260, 796594, 838520, 1593188, 1991485, 3186376, 3982970, 7965940, 15931880]

約数ペア:

[(1, 15931880), (2, 7965940), (4, 3982970), (5, 3186376), (8, 1991485), (10, 1593188), (19, 838520), (20, 796594), (38, 419260), (40, 398297), (76, 209630), (95, 167704), (152, 104815), (190, 83852), (380, 41926), (760, 20963)]