20155005

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 38054016

約数和(自身を除く): 17899011

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 131, 195, 263, 393, 585, 655, 789, 1179, 1315, 1703, 1965, 2367, 3419, 3945, 5109, 5895, 8515, 10257, 11835, 15327, 17095, 25545, 30771, 34453, 51285, 76635, 103359, 153855, 172265, 310077, 447889, 516795, 1343667, 1550385, 2239445, 4031001, 6718335, 20155005]

約数ペア:

[(1, 20155005), (3, 6718335), (5, 4031001), (9, 2239445), (13, 1550385), (15, 1343667), (39, 516795), (45, 447889), (65, 310077), (117, 172265), (131, 153855), (195, 103359), (263, 76635), (393, 51285), (585, 34453), (655, 30771), (789, 25545), (1179, 17095), (1315, 15327), (1703, 11835), (1965, 10257), (2367, 8515), (3419, 5895), (3945, 5109)]