20845584400

素因数分解:

$2^4\times 5^2\times {\mathrm{7219}}^2$

素因数の和:14456

約数の個数: 45

約数和(自身を含む): 50088454941

約数和(自身を除く): 29242870541

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 7219, 14438, 28876, 36095, 57752, 72190, 115504, 144380, 180475, 288760, 360950, 577520, 721900, 1443800, 2887600, 52113961, 104227922, 208455844, 260569805, 416911688, 521139610, 833823376, 1042279220, 1302849025, 2084558440, 2605698050, 4169116880, 5211396100, 10422792200, 20845584400]

約数ペア:

[(1, 20845584400), (2, 10422792200), (4, 5211396100), (5, 4169116880), (8, 2605698050), (10, 2084558440), (16, 1302849025), (20, 1042279220), (25, 833823376), (40, 521139610), (50, 416911688), (80, 260569805), (100, 208455844), (200, 104227922), (400, 52113961), (7219, 2887600), (14438, 1443800), (28876, 721900), (36095, 577520), (57752, 360950), (72190, 288760), (115504, 180475)]