19511760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{81299}}^1$

素因数の和:81315

約数の個数: 40

約数和(自身を含む): 60487200

約数和(自身を除く): 40975440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 81299, 162598, 243897, 325196, 406495, 487794, 650392, 812990, 975588, 1219485, 1300784, 1625980, 1951176, 2438970, 3251960, 3902352, 4877940, 6503920, 9755880, 19511760]

約数ペア:

[(1, 19511760), (2, 9755880), (3, 6503920), (4, 4877940), (5, 3902352), (6, 3251960), (8, 2438970), (10, 1951176), (12, 1625980), (15, 1300784), (16, 1219485), (20, 975588), (24, 812990), (30, 650392), (40, 487794), (48, 406495), (60, 325196), (80, 243897), (120, 162598), (240, 81299)]