205780900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{158293}}^1$

素因数の和:158320

約数の個数: 36

約数和(自身を含む): 480897172

約数和(自身を除く): 275116272

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 158293, 316586, 633172, 791465, 1582930, 2057809, 3165860, 3957325, 4115618, 7914650, 8231236, 10289045, 15829300, 20578090, 41156180, 51445225, 102890450, 205780900]

約数ペア:

[(1, 205780900), (2, 102890450), (4, 51445225), (5, 41156180), (10, 20578090), (13, 15829300), (20, 10289045), (25, 8231236), (26, 7914650), (50, 4115618), (52, 3957325), (65, 3165860), (100, 2057809), (130, 1582930), (260, 791465), (325, 633172), (650, 316586), (1300, 158293)]