15995785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 21732480

約数和(自身を除く): 5736695

約数列:

[1, 5, 13, 43, 59, 65, 97, 215, 295, 485, 559, 767, 1261, 2537, 2795, 3835, 4171, 5723, 6305, 12685, 20855, 28615, 32981, 54223, 74399, 164905, 246089, 271115, 371995, 1230445, 3199157, 15995785]

約数ペア:

[(1, 15995785), (5, 3199157), (13, 1230445), (43, 371995), (59, 271115), (65, 246089), (97, 164905), (215, 74399), (295, 54223), (485, 32981), (559, 28615), (767, 20855), (1261, 12685), (2537, 6305), (2795, 5723), (3835, 4171)]