40390215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{158393}}^1$

素因数の和:158418

約数の個数: 16

約数和(自身を含む): 68426208

約数和(自身を除く): 28035993

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 158393, 475179, 791965, 2375895, 2692681, 8078043, 13463405, 40390215]

約数ペア:

[(1, 40390215), (3, 13463405), (5, 8078043), (15, 2692681), (17, 2375895), (51, 791965), (85, 475179), (255, 158393)]