990902015

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{167}}^1\times {\mathrm{271}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 1250242560

約数和(自身を除く): 259340545

約数列:

[1, 5, 29, 145, 151, 167, 271, 755, 835, 1355, 4379, 4843, 7859, 21895, 24215, 25217, 39295, 40921, 45257, 126085, 204605, 226285, 731293, 1186709, 1312453, 3656465, 5933545, 6562265, 6833807, 34169035, 198180403, 990902015]

約数ペア:

[(1, 990902015), (5, 198180403), (29, 34169035), (145, 6833807), (151, 6562265), (167, 5933545), (271, 3656465), (755, 1312453), (835, 1186709), (1355, 731293), (4379, 226285), (4843, 204605), (7859, 126085), (21895, 45257), (24215, 40921), (25217, 39295)]