81911128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41453}}^1$

素因数の和:41491

約数の個数: 32

約数和(自身を含む): 174106800

約数和(自身を除く): 92195672

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 41453, 82906, 165812, 331624, 538889, 787607, 1077778, 1575214, 2155556, 3150428, 4311112, 6300856, 10238891, 20477782, 40955564, 81911128]

約数ペア:

[(1, 81911128), (2, 40955564), (4, 20477782), (8, 10238891), (13, 6300856), (19, 4311112), (26, 3150428), (38, 2155556), (52, 1575214), (76, 1077778), (104, 787607), (152, 538889), (247, 331624), (494, 165812), (988, 82906), (1976, 41453)]