661008385

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1\times {\mathrm{857}}^1$

素因数の和:1257

約数の個数: 32

約数和(自身を含む): 874748160

約数和(自身を除く): 213739775

約数列:

[1, 5, 19, 23, 95, 115, 353, 437, 857, 1765, 2185, 4285, 6707, 8119, 16283, 19711, 33535, 40595, 81415, 98555, 154261, 302521, 374509, 771305, 1512605, 1872545, 5747899, 6957983, 28739495, 34789915, 132201677, 661008385]

約数ペア:

[(1, 661008385), (5, 132201677), (19, 34789915), (23, 28739495), (95, 6957983), (115, 5747899), (353, 1872545), (437, 1512605), (857, 771305), (1765, 374509), (2185, 302521), (4285, 154261), (6707, 98555), (8119, 81415), (16283, 40595), (19711, 33535)]