207680915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{138917}}^1$

素因数の和:138958

約数の個数: 16

約数和(自身を含む): 280058688

約数和(自身を除く): 72377773

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 138917, 694585, 1805921, 3195091, 9029605, 15975455, 41536183, 207680915]

約数ペア:

[(1, 207680915), (5, 41536183), (13, 15975455), (23, 9029605), (65, 3195091), (115, 1805921), (299, 694585), (1495, 138917)]