139407620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{20441}}^1$

素因数の和:20492

約数の個数: 48

約数和(自身を含む): 329688576

約数和(自身を除く): 190280956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 20441, 40882, 81764, 102205, 204410, 224851, 408820, 449702, 633671, 899404, 1124255, 1267342, 2248510, 2534684, 3168355, 4497020, 6336710, 6970381, 12673420, 13940762, 27881524, 34851905, 69703810, 139407620]

約数ペア:

[(1, 139407620), (2, 69703810), (4, 34851905), (5, 27881524), (10, 13940762), (11, 12673420), (20, 6970381), (22, 6336710), (31, 4497020), (44, 3168355), (55, 2534684), (62, 2248510), (110, 1267342), (124, 1124255), (155, 899404), (220, 633671), (310, 449702), (341, 408820), (620, 224851), (682, 204410), (1364, 102205), (1705, 81764), (3410, 40882), (6820, 20441)]