2013295520

素因数分解:

$2^5\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{6301}}^1$

素因数の和:8313

約数の個数: 48

約数和(自身を含む): 4759547688

約数和(自身を除く): 2746252168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1997, 3994, 6301, 7988, 9985, 12602, 15976, 19970, 25204, 31505, 31952, 39940, 50408, 63010, 63904, 79880, 100816, 126020, 159760, 201632, 252040, 319520, 504080, 1008160, 12583097, 25166194, 50332388, 62915485, 100664776, 125830970, 201329552, 251661940, 402659104, 503323880, 1006647760, 2013295520]

約数ペア:

[(1, 2013295520), (2, 1006647760), (4, 503323880), (5, 402659104), (8, 251661940), (10, 201329552), (16, 125830970), (20, 100664776), (32, 62915485), (40, 50332388), (80, 25166194), (160, 12583097), (1997, 1008160), (3994, 504080), (6301, 319520), (7988, 252040), (9985, 201632), (12602, 159760), (15976, 126020), (19970, 100816), (25204, 79880), (31505, 63904), (31952, 63010), (39940, 50408)]