1297972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:355

約数の個数: 24

約数和(自身を含む): 2479400

約数和(自身を除く): 1181428

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 229, 436, 458, 916, 1417, 2834, 2977, 5668, 5954, 11908, 24961, 49922, 99844, 324493, 648986, 1297972]

約数ペア:

[(1, 1297972), (2, 648986), (4, 324493), (13, 99844), (26, 49922), (52, 24961), (109, 11908), (218, 5954), (229, 5668), (436, 2977), (458, 2834), (916, 1417)]