131362780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1171}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 283530240

約数和(自身を除く): 152167460

約数列:

[1, 2, 4, 5, 10, 20, 71, 79, 142, 158, 284, 316, 355, 395, 710, 790, 1171, 1420, 1580, 2342, 4684, 5609, 5855, 11218, 11710, 22436, 23420, 28045, 56090, 83141, 92509, 112180, 166282, 185018, 332564, 370036, 415705, 462545, 831410, 925090, 1662820, 1850180, 6568139, 13136278, 26272556, 32840695, 65681390, 131362780]

約数ペア:

[(1, 131362780), (2, 65681390), (4, 32840695), (5, 26272556), (10, 13136278), (20, 6568139), (71, 1850180), (79, 1662820), (142, 925090), (158, 831410), (284, 462545), (316, 415705), (355, 370036), (395, 332564), (710, 185018), (790, 166282), (1171, 112180), (1420, 92509), (1580, 83141), (2342, 56090), (4684, 28045), (5609, 23420), (5855, 22436), (11218, 11710)]