81259100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{62507}}^1$

素因数の和:62534

約数の個数: 36

約数和(自身を含む): 189899304

約数和(自身を除く): 108640204

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 62507, 125014, 250028, 312535, 625070, 812591, 1250140, 1562675, 1625182, 3125350, 3250364, 4062955, 6250700, 8125910, 16251820, 20314775, 40629550, 81259100]

約数ペア:

[(1, 81259100), (2, 40629550), (4, 20314775), (5, 16251820), (10, 8125910), (13, 6250700), (20, 4062955), (25, 3250364), (26, 3125350), (50, 1625182), (52, 1562675), (65, 1250140), (100, 812591), (130, 625070), (260, 312535), (325, 250028), (650, 125014), (1300, 62507)]