20535190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:481

約数の個数: 48

約数和(自身を含む): 41504400

約数和(自身を除く): 20969210

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 169, 290, 338, 377, 419, 754, 838, 845, 1690, 1885, 2095, 3770, 4190, 4901, 5447, 9802, 10894, 12151, 24302, 24505, 27235, 49010, 54470, 60755, 70811, 121510, 141622, 157963, 315926, 354055, 708110, 789815, 1579630, 2053519, 4107038, 10267595, 20535190]

約数ペア:

[(1, 20535190), (2, 10267595), (5, 4107038), (10, 2053519), (13, 1579630), (26, 789815), (29, 708110), (58, 354055), (65, 315926), (130, 157963), (145, 141622), (169, 121510), (290, 70811), (338, 60755), (377, 54470), (419, 49010), (754, 27235), (838, 24505), (845, 24302), (1690, 12151), (1885, 10894), (2095, 9802), (3770, 5447), (4190, 4901)]