19315040

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1979}}^1$

素因数の和:2055

約数の個数: 48

約数和(自身を含む): 46403280

約数和(自身を除く): 27088240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 1979, 2440, 3958, 4880, 7916, 9760, 9895, 15832, 19790, 31664, 39580, 63328, 79160, 120719, 158320, 241438, 316640, 482876, 603595, 965752, 1207190, 1931504, 2414380, 3863008, 4828760, 9657520, 19315040]

約数ペア:

[(1, 19315040), (2, 9657520), (4, 4828760), (5, 3863008), (8, 2414380), (10, 1931504), (16, 1207190), (20, 965752), (32, 603595), (40, 482876), (61, 316640), (80, 241438), (122, 158320), (160, 120719), (244, 79160), (305, 63328), (488, 39580), (610, 31664), (976, 19790), (1220, 15832), (1952, 9895), (1979, 9760), (2440, 7916), (3958, 4880)]