813238420

素因数分解:

$2^2\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{25303}}^1$

素因数の和:26919

約数の個数: 24

約数和(自身を含む): 1708930944

約数和(自身を除く): 895692524

約数列:

[1, 2, 4, 5, 10, 20, 1607, 3214, 6428, 8035, 16070, 25303, 32140, 50606, 101212, 126515, 253030, 506060, 40661921, 81323842, 162647684, 203309605, 406619210, 813238420]

約数ペア:

[(1, 813238420), (2, 406619210), (4, 203309605), (5, 162647684), (10, 81323842), (20, 40661921), (1607, 506060), (3214, 253030), (6428, 126515), (8035, 101212), (16070, 50606), (25303, 32140)]