19727640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{54799}}^1$

素因数の和:54816

約数の個数: 48

約数和(自身を含む): 64116000

約数和(自身を除く): 44388360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 54799, 109598, 164397, 219196, 273995, 328794, 438392, 493191, 547990, 657588, 821985, 986382, 1095980, 1315176, 1643970, 1972764, 2191960, 2465955, 3287940, 3945528, 4931910, 6575880, 9863820, 19727640]

約数ペア:

[(1, 19727640), (2, 9863820), (3, 6575880), (4, 4931910), (5, 3945528), (6, 3287940), (8, 2465955), (9, 2191960), (10, 1972764), (12, 1643970), (15, 1315176), (18, 1095980), (20, 986382), (24, 821985), (30, 657588), (36, 547990), (40, 493191), (45, 438392), (60, 328794), (72, 273995), (90, 219196), (120, 164397), (180, 109598), (360, 54799)]