40787240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78437}}^1$

素因数の和:78461

約数の個数: 32

約数和(自身を含む): 98831880

約数和(自身を除く): 58044640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 78437, 156874, 313748, 392185, 627496, 784370, 1019681, 1568740, 2039362, 3137480, 4078724, 5098405, 8157448, 10196810, 20393620, 40787240]

約数ペア:

[(1, 40787240), (2, 20393620), (4, 10196810), (5, 8157448), (8, 5098405), (10, 4078724), (13, 3137480), (20, 2039362), (26, 1568740), (40, 1019681), (52, 784370), (65, 627496), (104, 392185), (130, 313748), (260, 156874), (520, 78437)]