81456505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{547}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 110476800

約数和(自身を除く): 29020295

約数列:

[1, 5, 13, 29, 65, 79, 145, 377, 395, 547, 1027, 1885, 2291, 2735, 5135, 7111, 11455, 15863, 29783, 35555, 43213, 79315, 148915, 206219, 216065, 561769, 1031095, 1253177, 2808845, 6265885, 16291301, 81456505]

約数ペア:

[(1, 81456505), (5, 16291301), (13, 6265885), (29, 2808845), (65, 1253177), (79, 1031095), (145, 561769), (377, 216065), (395, 206219), (547, 148915), (1027, 79315), (1885, 43213), (2291, 35555), (2735, 29783), (5135, 15863), (7111, 11455)]