81681110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{40237}}^1$

素因数の和:40280

約数の個数: 32

約数和(自身を含む): 173828160

約数和(自身を除く): 92147050

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 40237, 80474, 201185, 281659, 402370, 563318, 1166873, 1408295, 2333746, 2816590, 5834365, 8168111, 11668730, 16336222, 40840555, 81681110]

約数ペア:

[(1, 81681110), (2, 40840555), (5, 16336222), (7, 11668730), (10, 8168111), (14, 5834365), (29, 2816590), (35, 2333746), (58, 1408295), (70, 1166873), (145, 563318), (203, 402370), (290, 281659), (406, 201185), (1015, 80474), (2030, 40237)]