20708140

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{6857}}^1$

素因数の和:7017

約数の個数: 24

約数和(自身を含む): 43781472

約数和(自身を除く): 23073332

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 6857, 13714, 27428, 34285, 68570, 137140, 1035407, 2070814, 4141628, 5177035, 10354070, 20708140]

約数ペア:

[(1, 20708140), (2, 10354070), (4, 5177035), (5, 4141628), (10, 2070814), (20, 1035407), (151, 137140), (302, 68570), (604, 34285), (755, 27428), (1510, 13714), (3020, 6857)]