81938272

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{457}}^1$

素因数の和:911

約数の個数: 48

約数和(自身を含む): 174508992

約数和(自身を除く): 92570720

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 431, 457, 862, 914, 1724, 1828, 3448, 3656, 5603, 5941, 6896, 7312, 11206, 11882, 13792, 14624, 22412, 23764, 44824, 47528, 89648, 95056, 179296, 190112, 196967, 393934, 787868, 1575736, 2560571, 3151472, 5121142, 6302944, 10242284, 20484568, 40969136, 81938272]

約数ペア:

[(1, 81938272), (2, 40969136), (4, 20484568), (8, 10242284), (13, 6302944), (16, 5121142), (26, 3151472), (32, 2560571), (52, 1575736), (104, 787868), (208, 393934), (416, 196967), (431, 190112), (457, 179296), (862, 95056), (914, 89648), (1724, 47528), (1828, 44824), (3448, 23764), (3656, 22412), (5603, 14624), (5941, 13792), (6896, 11882), (7312, 11206)]