81813095

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1511}}^1$

素因数の和:1560

約数の個数: 48

約数和(自身を含む): 130310208

約数和(自身を除く): 48497113

約数列:

[1, 5, 7, 13, 17, 35, 49, 65, 85, 91, 119, 221, 245, 455, 595, 637, 833, 1105, 1511, 1547, 3185, 4165, 7555, 7735, 10577, 10829, 19643, 25687, 52885, 54145, 74039, 98215, 128435, 137501, 179809, 333931, 370195, 687505, 899045, 962507, 1258663, 1669655, 2337517, 4812535, 6293315, 11687585, 16362619, 81813095]

約数ペア:

[(1, 81813095), (5, 16362619), (7, 11687585), (13, 6293315), (17, 4812535), (35, 2337517), (49, 1669655), (65, 1258663), (85, 962507), (91, 899045), (119, 687505), (221, 370195), (245, 333931), (455, 179809), (595, 137501), (637, 128435), (833, 98215), (1105, 74039), (1511, 54145), (1547, 52885), (3185, 25687), (4165, 19643), (7555, 10829), (7735, 10577)]