81374420

素因数分解:

$2^2\times 5^1\times {\mathrm{607}}^1\times {\mathrm{6703}}^1$

素因数の和:7319

約数の個数: 24

約数和(自身を含む): 171193344

約数和(自身を除く): 89818924

約数列:

[1, 2, 4, 5, 10, 20, 607, 1214, 2428, 3035, 6070, 6703, 12140, 13406, 26812, 33515, 67030, 134060, 4068721, 8137442, 16274884, 20343605, 40687210, 81374420]

約数ペア:

[(1, 81374420), (2, 40687210), (4, 20343605), (5, 16274884), (10, 8137442), (20, 4068721), (607, 134060), (1214, 67030), (2428, 33515), (3035, 26812), (6070, 13406), (6703, 12140)]