80459920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:560

約数の個数: 80

約数和(自身を含む): 196416000

約数和(自身を除く): 115956080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 79, 80, 116, 145, 158, 232, 290, 316, 395, 439, 464, 580, 632, 790, 878, 1160, 1264, 1580, 1756, 2195, 2291, 2320, 3160, 3512, 4390, 4582, 6320, 7024, 8780, 9164, 11455, 12731, 17560, 18328, 22910, 25462, 34681, 35120, 36656, 45820, 50924, 63655, 69362, 91640, 101848, 127310, 138724, 173405, 183280, 203696, 254620, 277448, 346810, 509240, 554896, 693620, 1005749, 1018480, 1387240, 2011498, 2774480, 4022996, 5028745, 8045992, 10057490, 16091984, 20114980, 40229960, 80459920]

約数ペア:

[(1, 80459920), (2, 40229960), (4, 20114980), (5, 16091984), (8, 10057490), (10, 8045992), (16, 5028745), (20, 4022996), (29, 2774480), (40, 2011498), (58, 1387240), (79, 1018480), (80, 1005749), (116, 693620), (145, 554896), (158, 509240), (232, 346810), (290, 277448), (316, 254620), (395, 203696), (439, 183280), (464, 173405), (580, 138724), (632, 127310), (790, 101848), (878, 91640), (1160, 69362), (1264, 63655), (1580, 50924), (1756, 45820), (2195, 36656), (2291, 35120), (2320, 34681), (3160, 25462), (3512, 22910), (4390, 18328), (4582, 17560), (6320, 12731), (7024, 11455), (8780, 9164)]