25220720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1553}}^1$

素因数の和:1602

約数の個数: 80

約数和(自身を含む): 69370560

約数和(自身を除く): 44149840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1553, 1624, 2030, 2320, 3106, 3248, 4060, 6212, 7765, 8120, 10871, 12424, 15530, 16240, 21742, 24848, 31060, 43484, 45037, 54355, 62120, 86968, 90074, 108710, 124240, 173936, 180148, 217420, 225185, 315259, 360296, 434840, 450370, 630518, 720592, 869680, 900740, 1261036, 1576295, 1801480, 2522072, 3152590, 3602960, 5044144, 6305180, 12610360, 25220720]

約数ペア:

[(1, 25220720), (2, 12610360), (4, 6305180), (5, 5044144), (7, 3602960), (8, 3152590), (10, 2522072), (14, 1801480), (16, 1576295), (20, 1261036), (28, 900740), (29, 869680), (35, 720592), (40, 630518), (56, 450370), (58, 434840), (70, 360296), (80, 315259), (112, 225185), (116, 217420), (140, 180148), (145, 173936), (203, 124240), (232, 108710), (280, 90074), (290, 86968), (406, 62120), (464, 54355), (560, 45037), (580, 43484), (812, 31060), (1015, 24848), (1160, 21742), (1553, 16240), (1624, 15530), (2030, 12424), (2320, 10871), (3106, 8120), (3248, 7765), (4060, 6212)]