81925415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{769}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 116424000

約数和(自身を除く): 34498585

約数列:

[1, 5, 11, 13, 55, 65, 143, 149, 715, 745, 769, 1639, 1937, 3845, 8195, 8459, 9685, 9997, 21307, 42295, 49985, 106535, 109967, 114581, 549835, 572905, 1260391, 1489553, 6301955, 7447765, 16385083, 81925415]

約数ペア:

[(1, 81925415), (5, 16385083), (11, 7447765), (13, 6301955), (55, 1489553), (65, 1260391), (143, 572905), (149, 549835), (715, 114581), (745, 109967), (769, 106535), (1639, 49985), (1937, 42295), (3845, 21307), (8195, 9997), (8459, 9685)]