81205160

素因数分解:

$2^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{8713}}^1$

素因数の和:8957

約数の個数: 32

約数和(自身を含む): 183516840

約数和(自身を除く): 102311680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 233, 466, 932, 1165, 1864, 2330, 4660, 8713, 9320, 17426, 34852, 43565, 69704, 87130, 174260, 348520, 2030129, 4060258, 8120516, 10150645, 16241032, 20301290, 40602580, 81205160]

約数ペア:

[(1, 81205160), (2, 40602580), (4, 20301290), (5, 16241032), (8, 10150645), (10, 8120516), (20, 4060258), (40, 2030129), (233, 348520), (466, 174260), (932, 87130), (1165, 69704), (1864, 43565), (2330, 34852), (4660, 17426), (8713, 9320)]