18525520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1$

素因数の和:452

約数の個数: 80

約数和(自身を含む): 47496960

約数和(自身を除く): 28971440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 130, 188, 208, 235, 260, 376, 379, 470, 520, 611, 752, 758, 940, 1040, 1222, 1516, 1880, 1895, 2444, 3032, 3055, 3760, 3790, 4888, 4927, 6064, 6110, 7580, 9776, 9854, 12220, 15160, 17813, 19708, 24440, 24635, 30320, 35626, 39416, 48880, 49270, 71252, 78832, 89065, 98540, 142504, 178130, 197080, 231569, 285008, 356260, 394160, 463138, 712520, 926276, 1157845, 1425040, 1852552, 2315690, 3705104, 4631380, 9262760, 18525520]

約数ペア:

[(1, 18525520), (2, 9262760), (4, 4631380), (5, 3705104), (8, 2315690), (10, 1852552), (13, 1425040), (16, 1157845), (20, 926276), (26, 712520), (40, 463138), (47, 394160), (52, 356260), (65, 285008), (80, 231569), (94, 197080), (104, 178130), (130, 142504), (188, 98540), (208, 89065), (235, 78832), (260, 71252), (376, 49270), (379, 48880), (470, 39416), (520, 35626), (611, 30320), (752, 24635), (758, 24440), (940, 19708), (1040, 17813), (1222, 15160), (1516, 12220), (1880, 9854), (1895, 9776), (2444, 7580), (3032, 6110), (3055, 6064), (3760, 4927), (3790, 4888)]