261109330

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{20939}}^1$

素因数の和:21018

約数の個数: 32

約数和(自身を含む): 497534400

約数和(自身を除く): 236425070

約数列:

[1, 2, 5, 10, 29, 43, 58, 86, 145, 215, 290, 430, 1247, 2494, 6235, 12470, 20939, 41878, 104695, 209390, 607231, 900377, 1214462, 1800754, 3036155, 4501885, 6072310, 9003770, 26110933, 52221866, 130554665, 261109330]

約数ペア:

[(1, 261109330), (2, 130554665), (5, 52221866), (10, 26110933), (29, 9003770), (43, 6072310), (58, 4501885), (86, 3036155), (145, 1800754), (215, 1214462), (290, 900377), (430, 607231), (1247, 209390), (2494, 104695), (6235, 41878), (12470, 20939)]