208021135

素因数分解:

$5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{353}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 290563200

約数和(自身を除く): 82542065

約数列:

[1, 5, 7, 35, 113, 149, 353, 565, 745, 791, 1043, 1765, 2471, 3955, 5215, 12355, 16837, 39889, 52597, 84185, 117859, 199445, 262985, 279223, 368179, 589295, 1396115, 1840895, 5943461, 29717305, 41604227, 208021135]

約数ペア:

[(1, 208021135), (5, 41604227), (7, 29717305), (35, 5943461), (113, 1840895), (149, 1396115), (353, 589295), (565, 368179), (745, 279223), (791, 262985), (1043, 199445), (1765, 117859), (2471, 84185), (3955, 52597), (5215, 39889), (12355, 16837)]