818529340

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{353}}^1\times {\mathrm{431}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 1734203520

約数和(自身を除く): 915674180

約数列:

[1, 2, 4, 5, 10, 20, 269, 353, 431, 538, 706, 862, 1076, 1345, 1412, 1724, 1765, 2155, 2690, 3530, 4310, 5380, 7060, 8620, 94957, 115939, 152143, 189914, 231878, 304286, 379828, 463756, 474785, 579695, 608572, 760715, 949570, 1159390, 1521430, 1899140, 2318780, 3042860, 40926467, 81852934, 163705868, 204632335, 409264670, 818529340]

約数ペア:

[(1, 818529340), (2, 409264670), (4, 204632335), (5, 163705868), (10, 81852934), (20, 40926467), (269, 3042860), (353, 2318780), (431, 1899140), (538, 1521430), (706, 1159390), (862, 949570), (1076, 760715), (1345, 608572), (1412, 579695), (1724, 474785), (1765, 463756), (2155, 379828), (2690, 304286), (3530, 231878), (4310, 189914), (5380, 152143), (7060, 115939), (8620, 94957)]