25044640

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{997}}^1$

素因数の和:1169

約数の個数: 48

約数和(自身を含む): 59604552

約数和(自身を除く): 34559912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 628, 785, 997, 1256, 1570, 1994, 2512, 3140, 3988, 4985, 5024, 6280, 7976, 9970, 12560, 15952, 19940, 25120, 31904, 39880, 79760, 156529, 159520, 313058, 626116, 782645, 1252232, 1565290, 2504464, 3130580, 5008928, 6261160, 12522320, 25044640]

約数ペア:

[(1, 25044640), (2, 12522320), (4, 6261160), (5, 5008928), (8, 3130580), (10, 2504464), (16, 1565290), (20, 1252232), (32, 782645), (40, 626116), (80, 313058), (157, 159520), (160, 156529), (314, 79760), (628, 39880), (785, 31904), (997, 25120), (1256, 19940), (1570, 15952), (1994, 12560), (2512, 9970), (3140, 7976), (3988, 6280), (4985, 5024)]