81702020

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{69239}}^1$

素因数の和:69307

約数の個数: 24

約数和(自身を含む): 174484800

約数和(自身を除く): 92782780

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 69239, 138478, 276956, 346195, 692390, 1384780, 4085101, 8170202, 16340404, 20425505, 40851010, 81702020]

約数ペア:

[(1, 81702020), (2, 40851010), (4, 20425505), (5, 16340404), (10, 8170202), (20, 4085101), (59, 1384780), (118, 692390), (236, 346195), (295, 276956), (590, 138478), (1180, 69239)]