25567760

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{797}}^1$

素因数の和:1211

約数の個数: 40

約数和(自身を含む): 59668056

約数和(自身を除く): 34100296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 797, 802, 1594, 1604, 2005, 3188, 3208, 3985, 4010, 6376, 6416, 7970, 8020, 12752, 15940, 16040, 31880, 32080, 63760, 319597, 639194, 1278388, 1597985, 2556776, 3195970, 5113552, 6391940, 12783880, 25567760]

約数ペア:

[(1, 25567760), (2, 12783880), (4, 6391940), (5, 5113552), (8, 3195970), (10, 2556776), (16, 1597985), (20, 1278388), (40, 639194), (80, 319597), (401, 63760), (797, 32080), (802, 31880), (1594, 16040), (1604, 15940), (2005, 12752), (3188, 8020), (3208, 7970), (3985, 6416), (4010, 6376)]