320420715

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1\times {\mathrm{677}}^1$

素因数の和:1051

約数の個数: 32

約数和(自身を含む): 519402240

約数和(自身を除く): 198981525

約数列:

[1, 3, 5, 15, 139, 227, 417, 677, 681, 695, 1135, 2031, 2085, 3385, 3405, 10155, 31553, 94103, 94659, 153679, 157765, 282309, 461037, 470515, 473295, 768395, 1411545, 2305185, 21361381, 64084143, 106806905, 320420715]

約数ペア:

[(1, 320420715), (3, 106806905), (5, 64084143), (15, 21361381), (139, 2305185), (227, 1411545), (417, 768395), (677, 473295), (681, 470515), (695, 461037), (1135, 282309), (2031, 157765), (2085, 153679), (3385, 94659), (3405, 94103), (10155, 31553)]