638343134

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71999}}^1$

素因数の和:72056

約数の個数: 32

約数和(自身を含む): 1161216000

約数和(自身を除く): 522872866

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 143, 286, 341, 403, 682, 806, 4433, 8866, 71999, 143998, 791989, 935987, 1583978, 1871974, 2231969, 4463938, 10295857, 20591714, 24551659, 29015597, 49103318, 58031194, 319171567, 638343134]

約数ペア:

[(1, 638343134), (2, 319171567), (11, 58031194), (13, 49103318), (22, 29015597), (26, 24551659), (31, 20591714), (62, 10295857), (143, 4463938), (286, 2231969), (341, 1871974), (403, 1583978), (682, 935987), (806, 791989), (4433, 143998), (8866, 71999)]