311568140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{8747}}^1$

素因数の和:8906

約数の個数: 48

約数和(自身を含む): 709847712

約数和(自身を除く): 398279572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 548, 685, 1370, 1781, 2740, 3562, 7124, 8747, 8905, 17494, 17810, 34988, 35620, 43735, 87470, 113711, 174940, 227422, 454844, 568555, 1137110, 1198339, 2274220, 2396678, 4793356, 5991695, 11983390, 15578407, 23966780, 31156814, 62313628, 77892035, 155784070, 311568140]

約数ペア:

[(1, 311568140), (2, 155784070), (4, 77892035), (5, 62313628), (10, 31156814), (13, 23966780), (20, 15578407), (26, 11983390), (52, 5991695), (65, 4793356), (130, 2396678), (137, 2274220), (260, 1198339), (274, 1137110), (548, 568555), (685, 454844), (1370, 227422), (1781, 174940), (2740, 113711), (3562, 87470), (7124, 43735), (8747, 35620), (8905, 34988), (17494, 17810)]