1640390945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{14159}}^1$

素因数の和:14257

約数の個数: 32

約数和(自身を含む): 2202163200

約数和(自身を除く): 561772255

約数列:

[1, 5, 17, 29, 47, 85, 145, 235, 493, 799, 1363, 2465, 3995, 6815, 14159, 23171, 70795, 115855, 240703, 410611, 665473, 1203515, 2053055, 3327365, 6980387, 11313041, 19298717, 34901935, 56565205, 96493585, 328078189, 1640390945]

約数ペア:

[(1, 1640390945), (5, 328078189), (17, 96493585), (29, 56565205), (47, 34901935), (85, 19298717), (145, 11313041), (235, 6980387), (493, 3327365), (799, 2053055), (1363, 1203515), (2465, 665473), (3995, 410611), (6815, 240703), (14159, 115855), (23171, 70795)]