80358820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 180670392

約数和(自身を除く): 100311572

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 113, 124, 148, 155, 185, 226, 310, 370, 452, 565, 620, 740, 961, 1130, 1147, 1922, 2260, 2294, 3503, 3844, 4181, 4588, 4805, 5735, 7006, 8362, 9610, 11470, 14012, 16724, 17515, 19220, 20905, 22940, 35030, 35557, 41810, 70060, 71114, 83620, 108593, 129611, 142228, 177785, 217186, 259222, 355570, 434372, 518444, 542965, 648055, 711140, 1085930, 1296110, 2171860, 2592220, 4017941, 8035882, 16071764, 20089705, 40179410, 80358820]

約数ペア:

[(1, 80358820), (2, 40179410), (4, 20089705), (5, 16071764), (10, 8035882), (20, 4017941), (31, 2592220), (37, 2171860), (62, 1296110), (74, 1085930), (113, 711140), (124, 648055), (148, 542965), (155, 518444), (185, 434372), (226, 355570), (310, 259222), (370, 217186), (452, 177785), (565, 142228), (620, 129611), (740, 108593), (961, 83620), (1130, 71114), (1147, 70060), (1922, 41810), (2260, 35557), (2294, 35030), (3503, 22940), (3844, 20905), (4181, 19220), (4588, 17515), (4805, 16724), (5735, 14012), (7006, 11470), (8362, 9610)]