81302515

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{11443}}^1$

素因数の和:11491

約数の個数: 24

約数和(自身を含む): 117415440

約数和(自身を除く): 36112925

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 1015, 1421, 7105, 11443, 57215, 80101, 331847, 400505, 560707, 1659235, 2322929, 2803535, 11614645, 16260503, 81302515]

約数ペア:

[(1, 81302515), (5, 16260503), (7, 11614645), (29, 2803535), (35, 2322929), (49, 1659235), (145, 560707), (203, 400505), (245, 331847), (1015, 80101), (1421, 57215), (7105, 11443)]