15994480

素因数分解:

$2^4\times 5^1\times {\mathrm{199931}}^1$

素因数の和:199944

約数の個数: 20

約数和(自身を含む): 37187352

約数和(自身を除く): 21192872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199931, 399862, 799724, 999655, 1599448, 1999310, 3198896, 3998620, 7997240, 15994480]

約数ペア:

[(1, 15994480), (2, 7997240), (4, 3998620), (5, 3198896), (8, 1999310), (10, 1599448), (16, 999655), (20, 799724), (40, 399862), (80, 199931)]