173820620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1\times {\mathrm{563}}^1$

素因数の和:974

約数の個数: 48

約数和(自身を含む): 375217920

約数和(自身を除く): 201397300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 359, 430, 563, 718, 860, 1126, 1436, 1795, 2252, 2815, 3590, 5630, 7180, 11260, 15437, 24209, 30874, 48418, 61748, 77185, 96836, 121045, 154370, 202117, 242090, 308740, 404234, 484180, 808468, 1010585, 2021170, 4042340, 8691031, 17382062, 34764124, 43455155, 86910310, 173820620]

約数ペア:

[(1, 173820620), (2, 86910310), (4, 43455155), (5, 34764124), (10, 17382062), (20, 8691031), (43, 4042340), (86, 2021170), (172, 1010585), (215, 808468), (359, 484180), (430, 404234), (563, 308740), (718, 242090), (860, 202117), (1126, 154370), (1436, 121045), (1795, 96836), (2252, 77185), (2815, 61748), (3590, 48418), (5630, 30874), (7180, 24209), (11260, 15437)]