81756080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2179}}^1$

素因数の和:2266

約数の個数: 80

約数和(自身を含む): 220581120

約数和(自身を除く): 138825040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 67, 70, 80, 112, 134, 140, 268, 280, 335, 469, 536, 560, 670, 938, 1072, 1340, 1876, 2179, 2345, 2680, 3752, 4358, 4690, 5360, 7504, 8716, 9380, 10895, 15253, 17432, 18760, 21790, 30506, 34864, 37520, 43580, 61012, 76265, 87160, 122024, 145993, 152530, 174320, 244048, 291986, 305060, 583972, 610120, 729965, 1021951, 1167944, 1220240, 1459930, 2043902, 2335888, 2919860, 4087804, 5109755, 5839720, 8175608, 10219510, 11679440, 16351216, 20439020, 40878040, 81756080]

約数ペア:

[(1, 81756080), (2, 40878040), (4, 20439020), (5, 16351216), (7, 11679440), (8, 10219510), (10, 8175608), (14, 5839720), (16, 5109755), (20, 4087804), (28, 2919860), (35, 2335888), (40, 2043902), (56, 1459930), (67, 1220240), (70, 1167944), (80, 1021951), (112, 729965), (134, 610120), (140, 583972), (268, 305060), (280, 291986), (335, 244048), (469, 174320), (536, 152530), (560, 145993), (670, 122024), (938, 87160), (1072, 76265), (1340, 61012), (1876, 43580), (2179, 37520), (2345, 34864), (2680, 30506), (3752, 21790), (4358, 18760), (4690, 17432), (5360, 15253), (7504, 10895), (8716, 9380)]