25221532

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 52920000

約数和(自身を除く): 27698468

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 89, 116, 178, 203, 349, 356, 406, 623, 698, 812, 1246, 1396, 2443, 2492, 2581, 4886, 5162, 9772, 10121, 10324, 18067, 20242, 31061, 36134, 40484, 62122, 70847, 72268, 124244, 141694, 217427, 283388, 434854, 869708, 900769, 1801538, 3603076, 6305383, 12610766, 25221532]

約数ペア:

[(1, 25221532), (2, 12610766), (4, 6305383), (7, 3603076), (14, 1801538), (28, 900769), (29, 869708), (58, 434854), (89, 283388), (116, 217427), (178, 141694), (203, 124244), (349, 72268), (356, 70847), (406, 62122), (623, 40484), (698, 36134), (812, 31061), (1246, 20242), (1396, 18067), (2443, 10324), (2492, 10121), (2581, 9772), (4886, 5162)]