131819280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{549247}}^1$

素因数の和:549263

約数の個数: 40

約数和(自身を含む): 408640512

約数和(自身を除く): 276821232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 549247, 1098494, 1647741, 2196988, 2746235, 3295482, 4393976, 5492470, 6590964, 8238705, 8787952, 10984940, 13181928, 16477410, 21969880, 26363856, 32954820, 43939760, 65909640, 131819280]

約数ペア:

[(1, 131819280), (2, 65909640), (3, 43939760), (4, 32954820), (5, 26363856), (6, 21969880), (8, 16477410), (10, 13181928), (12, 10984940), (15, 8787952), (16, 8238705), (20, 6590964), (24, 5492470), (30, 4393976), (40, 3295482), (48, 2746235), (60, 2196988), (80, 1647741), (120, 1098494), (240, 549247)]