81418272

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{65239}}^1$

素因数の和:65265

約数の個数: 48

約数和(自身を含む): 230166720

約数和(自身を除く): 148748448

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 65239, 130478, 195717, 260956, 391434, 521912, 782868, 848107, 1043824, 1565736, 1696214, 2087648, 2544321, 3131472, 3392428, 5088642, 6262944, 6784856, 10177284, 13569712, 20354568, 27139424, 40709136, 81418272]

約数ペア:

[(1, 81418272), (2, 40709136), (3, 27139424), (4, 20354568), (6, 13569712), (8, 10177284), (12, 6784856), (13, 6262944), (16, 5088642), (24, 3392428), (26, 3131472), (32, 2544321), (39, 2087648), (48, 1696214), (52, 1565736), (78, 1043824), (96, 848107), (104, 782868), (156, 521912), (208, 391434), (312, 260956), (416, 195717), (624, 130478), (1248, 65239)]