205499760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{856249}}^1$

素因数の和:856265

約数の個数: 40

約数和(自身を含む): 637050000

約数和(自身を除く): 431550240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 856249, 1712498, 2568747, 3424996, 4281245, 5137494, 6849992, 8562490, 10274988, 12843735, 13699984, 17124980, 20549976, 25687470, 34249960, 41099952, 51374940, 68499920, 102749880, 205499760]

約数ペア:

[(1, 205499760), (2, 102749880), (3, 68499920), (4, 51374940), (5, 41099952), (6, 34249960), (8, 25687470), (10, 20549976), (12, 17124980), (15, 13699984), (16, 12843735), (20, 10274988), (24, 8562490), (30, 6849992), (40, 5137494), (48, 4281245), (60, 3424996), (80, 2568747), (120, 1712498), (240, 856249)]