20261680

素因数分解:

$2^4\times 5^1\times {\mathrm{233}}^1\times {\mathrm{1087}}^1$

素因数の和:1333

約数の個数: 40

約数和(自身を含む): 47354112

約数和(自身を除く): 27092432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233, 466, 932, 1087, 1165, 1864, 2174, 2330, 3728, 4348, 4660, 5435, 8696, 9320, 10870, 17392, 18640, 21740, 43480, 86960, 253271, 506542, 1013084, 1266355, 2026168, 2532710, 4052336, 5065420, 10130840, 20261680]

約数ペア:

[(1, 20261680), (2, 10130840), (4, 5065420), (5, 4052336), (8, 2532710), (10, 2026168), (16, 1266355), (20, 1013084), (40, 506542), (80, 253271), (233, 86960), (466, 43480), (932, 21740), (1087, 18640), (1165, 17392), (1864, 10870), (2174, 9320), (2330, 8696), (3728, 5435), (4348, 4660)]