64647560

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 150232320

約数和(自身を除く): 85584760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 137, 188, 235, 251, 274, 376, 470, 502, 548, 685, 940, 1004, 1096, 1255, 1370, 1880, 2008, 2510, 2740, 5020, 5480, 6439, 10040, 11797, 12878, 23594, 25756, 32195, 34387, 47188, 51512, 58985, 64390, 68774, 94376, 117970, 128780, 137548, 171935, 235940, 257560, 275096, 343870, 471880, 687740, 1375480, 1616189, 3232378, 6464756, 8080945, 12929512, 16161890, 32323780, 64647560]

約数ペア:

[(1, 64647560), (2, 32323780), (4, 16161890), (5, 12929512), (8, 8080945), (10, 6464756), (20, 3232378), (40, 1616189), (47, 1375480), (94, 687740), (137, 471880), (188, 343870), (235, 275096), (251, 257560), (274, 235940), (376, 171935), (470, 137548), (502, 128780), (548, 117970), (685, 94376), (940, 68774), (1004, 64390), (1096, 58985), (1255, 51512), (1370, 47188), (1880, 34387), (2008, 32195), (2510, 25756), (2740, 23594), (5020, 12878), (5480, 11797), (6439, 10040)]