81419280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339247}}^1$

素因数の和:339263

約数の個数: 40

約数和(自身を含む): 252400512

約数和(自身を除く): 170981232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339247, 678494, 1017741, 1356988, 1696235, 2035482, 2713976, 3392470, 4070964, 5088705, 5427952, 6784940, 8141928, 10177410, 13569880, 16283856, 20354820, 27139760, 40709640, 81419280]

約数ペア:

[(1, 81419280), (2, 40709640), (3, 27139760), (4, 20354820), (5, 16283856), (6, 13569880), (8, 10177410), (10, 8141928), (12, 6784940), (15, 5427952), (16, 5088705), (20, 4070964), (24, 3392470), (30, 2713976), (40, 2035482), (48, 1696235), (60, 1356988), (80, 1017741), (120, 678494), (240, 339247)]