81481652

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1487}}^1$

素因数の和:1620

約数の個数: 48

約数和(自身を含む): 173322240

約数和(自身を除く): 91840588

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 103, 133, 206, 266, 412, 532, 721, 1442, 1487, 1957, 2884, 2974, 3914, 5948, 7828, 10409, 13699, 20818, 27398, 28253, 41636, 54796, 56506, 113012, 153161, 197771, 306322, 395542, 612644, 791084, 1072127, 2144254, 2910059, 4288508, 5820118, 11640236, 20370413, 40740826, 81481652]

約数ペア:

[(1, 81481652), (2, 40740826), (4, 20370413), (7, 11640236), (14, 5820118), (19, 4288508), (28, 2910059), (38, 2144254), (76, 1072127), (103, 791084), (133, 612644), (206, 395542), (266, 306322), (412, 197771), (532, 153161), (721, 113012), (1442, 56506), (1487, 54796), (1957, 41636), (2884, 28253), (2974, 27398), (3914, 20818), (5948, 13699), (7828, 10409)]