20736400

素因数分解:

$2^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1103}}^1$

素因数の和:1168

約数の個数: 60

約数和(自身を含む): 50925312

約数和(自身を除く): 30188912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 188, 200, 235, 376, 400, 470, 752, 940, 1103, 1175, 1880, 2206, 2350, 3760, 4412, 4700, 5515, 8824, 9400, 11030, 17648, 18800, 22060, 27575, 44120, 51841, 55150, 88240, 103682, 110300, 207364, 220600, 259205, 414728, 441200, 518410, 829456, 1036820, 1296025, 2073640, 2592050, 4147280, 5184100, 10368200, 20736400]

約数ペア:

[(1, 20736400), (2, 10368200), (4, 5184100), (5, 4147280), (8, 2592050), (10, 2073640), (16, 1296025), (20, 1036820), (25, 829456), (40, 518410), (47, 441200), (50, 414728), (80, 259205), (94, 220600), (100, 207364), (188, 110300), (200, 103682), (235, 88240), (376, 55150), (400, 51841), (470, 44120), (752, 27575), (940, 22060), (1103, 18800), (1175, 17648), (1880, 11030), (2206, 9400), (2350, 8824), (3760, 5515), (4412, 4700)]