28345990

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{677}}^1$

素因数の和:816

約数の個数: 32

約数和(自身を含む): 52721280

約数和(自身を除く): 24375290

約数列:

[1, 2, 5, 10, 53, 79, 106, 158, 265, 395, 530, 677, 790, 1354, 3385, 4187, 6770, 8374, 20935, 35881, 41870, 53483, 71762, 106966, 179405, 267415, 358810, 534830, 2834599, 5669198, 14172995, 28345990]

約数ペア:

[(1, 28345990), (2, 14172995), (5, 5669198), (10, 2834599), (53, 534830), (79, 358810), (106, 267415), (158, 179405), (265, 106966), (395, 71762), (530, 53483), (677, 41870), (790, 35881), (1354, 20935), (3385, 8374), (4187, 6770)]