18768800

素因数分解:

$2^5\times 5^2\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:858

約数の個数: 72

約数和(自身を含む): 47457900

約数和(自身を除く): 28689100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 80, 100, 116, 145, 160, 200, 232, 290, 400, 464, 580, 725, 800, 809, 928, 1160, 1450, 1618, 2320, 2900, 3236, 4045, 4640, 5800, 6472, 8090, 11600, 12944, 16180, 20225, 23200, 23461, 25888, 32360, 40450, 46922, 64720, 80900, 93844, 117305, 129440, 161800, 187688, 234610, 323600, 375376, 469220, 586525, 647200, 750752, 938440, 1173050, 1876880, 2346100, 3753760, 4692200, 9384400, 18768800]

約数ペア:

[(1, 18768800), (2, 9384400), (4, 4692200), (5, 3753760), (8, 2346100), (10, 1876880), (16, 1173050), (20, 938440), (25, 750752), (29, 647200), (32, 586525), (40, 469220), (50, 375376), (58, 323600), (80, 234610), (100, 187688), (116, 161800), (145, 129440), (160, 117305), (200, 93844), (232, 80900), (290, 64720), (400, 46922), (464, 40450), (580, 32360), (725, 25888), (800, 23461), (809, 23200), (928, 20225), (1160, 16180), (1450, 12944), (1618, 11600), (2320, 8090), (2900, 6472), (3236, 5800), (4045, 4640)]