20755320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{673}}^1$

素因数の和:944

約数の個数: 64

約数和(自身を含む): 62601120

約数和(自身を除く): 41845800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 673, 771, 1028, 1285, 1346, 1542, 2019, 2056, 2570, 2692, 3084, 3365, 3855, 4038, 5140, 5384, 6168, 6730, 7710, 8076, 10095, 10280, 13460, 15420, 16152, 20190, 26920, 30840, 40380, 80760, 172961, 345922, 518883, 691844, 864805, 1037766, 1383688, 1729610, 2075532, 2594415, 3459220, 4151064, 5188830, 6918440, 10377660, 20755320]

約数ペア:

[(1, 20755320), (2, 10377660), (3, 6918440), (4, 5188830), (5, 4151064), (6, 3459220), (8, 2594415), (10, 2075532), (12, 1729610), (15, 1383688), (20, 1037766), (24, 864805), (30, 691844), (40, 518883), (60, 345922), (120, 172961), (257, 80760), (514, 40380), (673, 30840), (771, 26920), (1028, 20190), (1285, 16152), (1346, 15420), (1542, 13460), (2019, 10280), (2056, 10095), (2570, 8076), (2692, 7710), (3084, 6730), (3365, 6168), (3855, 5384), (4038, 5140)]