388431395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{7349}}^1$

素因数の和:7427

約数の個数: 24

約数和(自身を含む): 525495600

約数和(自身を除く): 137064205

約数列:

[1, 5, 11, 31, 55, 155, 341, 961, 1705, 4805, 7349, 10571, 36745, 52855, 80839, 227819, 404195, 1139095, 2506009, 7062389, 12530045, 35311945, 77686279, 388431395]

約数ペア:

[(1, 388431395), (5, 77686279), (11, 35311945), (31, 12530045), (55, 7062389), (155, 2506009), (341, 1139095), (961, 404195), (1705, 227819), (4805, 80839), (7349, 52855), (10571, 36745)]