18087440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{32299}}^1$

素因数の和:32319

約数の個数: 40

約数和(自身を含む): 48062400

約数和(自身を除く): 29974960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 32299, 64598, 129196, 161495, 226093, 258392, 322990, 452186, 516784, 645980, 904372, 1130465, 1291960, 1808744, 2260930, 2583920, 3617488, 4521860, 9043720, 18087440]

約数ペア:

[(1, 18087440), (2, 9043720), (4, 4521860), (5, 3617488), (7, 2583920), (8, 2260930), (10, 1808744), (14, 1291960), (16, 1130465), (20, 904372), (28, 645980), (35, 516784), (40, 452186), (56, 322990), (70, 258392), (80, 226093), (112, 161495), (140, 129196), (280, 64598), (560, 32299)]