81029920

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:362

約数の個数: 96

約数和(自身を含む): 202704768

約数和(自身を除く): 121674848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 97, 115, 160, 184, 194, 227, 230, 368, 388, 454, 460, 485, 736, 776, 908, 920, 970, 1135, 1552, 1816, 1840, 1940, 2231, 2270, 3104, 3632, 3680, 3880, 4462, 4540, 5221, 7264, 7760, 8924, 9080, 10442, 11155, 15520, 17848, 18160, 20884, 22019, 22310, 26105, 35696, 36320, 41768, 44038, 44620, 52210, 71392, 83536, 88076, 89240, 104420, 110095, 167072, 176152, 178480, 208840, 220190, 352304, 356960, 417680, 440380, 506437, 704608, 835360, 880760, 1012874, 1761520, 2025748, 2532185, 3523040, 4051496, 5064370, 8102992, 10128740, 16205984, 20257480, 40514960, 81029920]

約数ペア:

[(1, 81029920), (2, 40514960), (4, 20257480), (5, 16205984), (8, 10128740), (10, 8102992), (16, 5064370), (20, 4051496), (23, 3523040), (32, 2532185), (40, 2025748), (46, 1761520), (80, 1012874), (92, 880760), (97, 835360), (115, 704608), (160, 506437), (184, 440380), (194, 417680), (227, 356960), (230, 352304), (368, 220190), (388, 208840), (454, 178480), (460, 176152), (485, 167072), (736, 110095), (776, 104420), (908, 89240), (920, 88076), (970, 83536), (1135, 71392), (1552, 52210), (1816, 44620), (1840, 44038), (1940, 41768), (2231, 36320), (2270, 35696), (3104, 26105), (3632, 22310), (3680, 22019), (3880, 20884), (4462, 18160), (4540, 17848), (5221, 15520), (7264, 11155), (7760, 10442), (8924, 9080)]