340000

素因数分解:

$2^5\times 5^4\times {\mathrm{17}}^1$

素因数の和:47

約数の個数: 60

約数和(自身を含む): 885654

約数和(自身を除く): 545654

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 125, 136, 160, 170, 200, 250, 272, 340, 400, 425, 500, 544, 625, 680, 800, 850, 1000, 1250, 1360, 1700, 2000, 2125, 2500, 2720, 3400, 4000, 4250, 5000, 6800, 8500, 10000, 10625, 13600, 17000, 20000, 21250, 34000, 42500, 68000, 85000, 170000, 340000]

約数ペア:

[(1, 340000), (2, 170000), (4, 85000), (5, 68000), (8, 42500), (10, 34000), (16, 21250), (17, 20000), (20, 17000), (25, 13600), (32, 10625), (34, 10000), (40, 8500), (50, 6800), (68, 5000), (80, 4250), (85, 4000), (100, 3400), (125, 2720), (136, 2500), (160, 2125), (170, 2000), (200, 1700), (250, 1360), (272, 1250), (340, 1000), (400, 850), (425, 800), (500, 680), (544, 625)]