19261775

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 26685792

約数和(自身を除く): 7424017

約数列:

[1, 5, 13, 25, 47, 65, 97, 169, 235, 325, 485, 611, 845, 1175, 1261, 2425, 3055, 4225, 4559, 6305, 7943, 15275, 16393, 22795, 31525, 39715, 59267, 81965, 113975, 198575, 296335, 409825, 770471, 1481675, 3852355, 19261775]

約数ペア:

[(1, 19261775), (5, 3852355), (13, 1481675), (25, 770471), (47, 409825), (65, 296335), (97, 198575), (169, 113975), (235, 81965), (325, 59267), (485, 39715), (611, 31525), (845, 22795), (1175, 16393), (1261, 15275), (2425, 7943), (3055, 6305), (4225, 4559)]