25081520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{569}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 63612000

約数和(自身を除く): 38530480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 304, 380, 464, 551, 569, 580, 760, 1102, 1138, 1160, 1520, 2204, 2276, 2320, 2755, 2845, 4408, 4552, 5510, 5690, 8816, 9104, 10811, 11020, 11380, 16501, 21622, 22040, 22760, 33002, 43244, 44080, 45520, 54055, 66004, 82505, 86488, 108110, 132008, 165010, 172976, 216220, 264016, 313519, 330020, 432440, 627038, 660040, 864880, 1254076, 1320080, 1567595, 2508152, 3135190, 5016304, 6270380, 12540760, 25081520]

約数ペア:

[(1, 25081520), (2, 12540760), (4, 6270380), (5, 5016304), (8, 3135190), (10, 2508152), (16, 1567595), (19, 1320080), (20, 1254076), (29, 864880), (38, 660040), (40, 627038), (58, 432440), (76, 330020), (80, 313519), (95, 264016), (116, 216220), (145, 172976), (152, 165010), (190, 132008), (232, 108110), (290, 86488), (304, 82505), (380, 66004), (464, 54055), (551, 45520), (569, 44080), (580, 43244), (760, 33002), (1102, 22760), (1138, 22040), (1160, 21622), (1520, 16501), (2204, 11380), (2276, 11020), (2320, 10811), (2755, 9104), (2845, 8816), (4408, 5690), (4552, 5510)]