81365672

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{4567}}^1$

素因数の和:4721

約数の個数: 32

約数和(自身を含む): 162803520

約数和(自身を除く): 81437848

約数列:

[1, 2, 4, 8, 17, 34, 68, 131, 136, 262, 524, 1048, 2227, 4454, 4567, 8908, 9134, 17816, 18268, 36536, 77639, 155278, 310556, 598277, 621112, 1196554, 2393108, 4786216, 10170709, 20341418, 40682836, 81365672]

約数ペア:

[(1, 81365672), (2, 40682836), (4, 20341418), (8, 10170709), (17, 4786216), (34, 2393108), (68, 1196554), (131, 621112), (136, 598277), (262, 310556), (524, 155278), (1048, 77639), (2227, 36536), (4454, 18268), (4567, 17816), (8908, 9134)]