19089395

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 27669600

約数和(自身を除く): 8580205

約数列:

[1, 5, 13, 19, 29, 41, 65, 95, 145, 169, 205, 247, 377, 533, 551, 779, 845, 1189, 1235, 1885, 2665, 2755, 3211, 3895, 4901, 5945, 6929, 7163, 10127, 15457, 16055, 22591, 24505, 34645, 35815, 50635, 77285, 93119, 112955, 131651, 200941, 293683, 465595, 658255, 1004705, 1468415, 3817879, 19089395]

約数ペア:

[(1, 19089395), (5, 3817879), (13, 1468415), (19, 1004705), (29, 658255), (41, 465595), (65, 293683), (95, 200941), (145, 131651), (169, 112955), (205, 93119), (247, 77285), (377, 50635), (533, 35815), (551, 34645), (779, 24505), (845, 22591), (1189, 16055), (1235, 15457), (1885, 10127), (2665, 7163), (2755, 6929), (3211, 5945), (3895, 4901)]