64918945

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2339}}^1$

素因数の和:2425

約数の個数: 32

約数和(自身を含む): 97493760

約数和(自身を除く): 32574815

約数列:

[1, 5, 7, 13, 35, 61, 65, 91, 305, 427, 455, 793, 2135, 2339, 3965, 5551, 11695, 16373, 27755, 30407, 81865, 142679, 152035, 212849, 713395, 998753, 1064245, 1854827, 4993765, 9274135, 12983789, 64918945]

約数ペア:

[(1, 64918945), (5, 12983789), (7, 9274135), (13, 4993765), (35, 1854827), (61, 1064245), (65, 998753), (91, 713395), (305, 212849), (427, 152035), (455, 142679), (793, 81865), (2135, 30407), (2339, 27755), (3965, 16373), (5551, 11695)]