31380215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{11909}}^1$

素因数の和:11962

約数の個数: 16

約数和(自身を含む): 41160960

約数和(自身を除く): 9780745

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 11909, 59545, 202453, 369179, 1012265, 1845895, 6276043, 31380215]

約数ペア:

[(1, 31380215), (5, 6276043), (17, 1845895), (31, 1012265), (85, 369179), (155, 202453), (527, 59545), (2635, 11909)]