838427836415

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{20506979}}^1$

素因数の和:20507051

約数の個数: 32

約数和(自身を含む): 1178249042880

約数和(自身を除く): 339821206465

約数列:

[1, 5, 13, 17, 37, 65, 85, 185, 221, 481, 629, 1105, 2405, 3145, 8177, 40885, 20506979, 102534895, 266590727, 348618643, 758758223, 1332953635, 1743093215, 3793791115, 4532042359, 9863856899, 12898889791, 22660211795, 49319284495, 64494448955, 167685567283, 838427836415]

約数ペア:

[(1, 838427836415), (5, 167685567283), (13, 64494448955), (17, 49319284495), (37, 22660211795), (65, 12898889791), (85, 9863856899), (185, 4532042359), (221, 3793791115), (481, 1743093215), (629, 1332953635), (1105, 758758223), (2405, 348618643), (3145, 266590727), (8177, 102534895), (40885, 20506979)]