128820276

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{673}}^1$

素因数の和:1105

約数の個数: 72

約数和(自身を含む): 352057160

約数和(自身を除く): 223236884

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 409, 468, 673, 818, 1227, 1346, 1636, 2019, 2454, 2692, 3681, 4038, 4908, 5317, 6057, 7362, 8076, 8749, 10634, 12114, 14724, 15951, 17498, 21268, 24228, 26247, 31902, 34996, 47853, 52494, 63804, 78741, 95706, 104988, 157482, 191412, 275257, 314964, 550514, 825771, 1101028, 1651542, 2477313, 3303084, 3578341, 4954626, 7156682, 9909252, 10735023, 14313364, 21470046, 32205069, 42940092, 64410138, 128820276]

約数ペア:

[(1, 128820276), (2, 64410138), (3, 42940092), (4, 32205069), (6, 21470046), (9, 14313364), (12, 10735023), (13, 9909252), (18, 7156682), (26, 4954626), (36, 3578341), (39, 3303084), (52, 2477313), (78, 1651542), (117, 1101028), (156, 825771), (234, 550514), (409, 314964), (468, 275257), (673, 191412), (818, 157482), (1227, 104988), (1346, 95706), (1636, 78741), (2019, 63804), (2454, 52494), (2692, 47853), (3681, 34996), (4038, 31902), (4908, 26247), (5317, 24228), (6057, 21268), (7362, 17498), (8076, 15951), (8749, 14724), (10634, 12114)]