81301565

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{569}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 106067880

約数和(自身を除く): 24766315

約数列:

[1, 5, 17, 41, 85, 205, 569, 697, 1681, 2845, 3485, 8405, 9673, 23329, 28577, 48365, 116645, 142885, 396593, 956489, 1982965, 4782445, 16260313, 81301565]

約数ペア:

[(1, 81301565), (5, 16260313), (17, 4782445), (41, 1982965), (85, 956489), (205, 396593), (569, 142885), (697, 116645), (1681, 48365), (2845, 28577), (3485, 23329), (8405, 9673)]