18042856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 40118400

約数和(自身を除く): 22075544

約数列:

[1, 2, 4, 8, 13, 19, 23, 26, 38, 46, 52, 76, 92, 104, 152, 184, 247, 299, 397, 437, 494, 598, 794, 874, 988, 1196, 1588, 1748, 1976, 2392, 3176, 3496, 5161, 5681, 7543, 9131, 10322, 11362, 15086, 18262, 20644, 22724, 30172, 36524, 41288, 45448, 60344, 73048, 98059, 118703, 173489, 196118, 237406, 346978, 392236, 474812, 693956, 784472, 949624, 1387912, 2255357, 4510714, 9021428, 18042856]

約数ペア:

[(1, 18042856), (2, 9021428), (4, 4510714), (8, 2255357), (13, 1387912), (19, 949624), (23, 784472), (26, 693956), (38, 474812), (46, 392236), (52, 346978), (76, 237406), (92, 196118), (104, 173489), (152, 118703), (184, 98059), (247, 73048), (299, 60344), (397, 45448), (437, 41288), (494, 36524), (598, 30172), (794, 22724), (874, 20644), (988, 18262), (1196, 15086), (1588, 11362), (1748, 10322), (1976, 9131), (2392, 7543), (3176, 5681), (3496, 5161)]