18235000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{521}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 48921840

約数和(自身を除く): 30686840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 521, 625, 700, 875, 1000, 1042, 1250, 1400, 1750, 2084, 2500, 2605, 3500, 3647, 4168, 4375, 5000, 5210, 7000, 7294, 8750, 10420, 13025, 14588, 17500, 18235, 20840, 26050, 29176, 35000, 36470, 52100, 65125, 72940, 91175, 104200, 130250, 145880, 182350, 260500, 325625, 364700, 455875, 521000, 651250, 729400, 911750, 1302500, 1823500, 2279375, 2605000, 3647000, 4558750, 9117500, 18235000]

約数ペア:

[(1, 18235000), (2, 9117500), (4, 4558750), (5, 3647000), (7, 2605000), (8, 2279375), (10, 1823500), (14, 1302500), (20, 911750), (25, 729400), (28, 651250), (35, 521000), (40, 455875), (50, 364700), (56, 325625), (70, 260500), (100, 182350), (125, 145880), (140, 130250), (175, 104200), (200, 91175), (250, 72940), (280, 65125), (350, 52100), (500, 36470), (521, 35000), (625, 29176), (700, 26050), (875, 20840), (1000, 18235), (1042, 17500), (1250, 14588), (1400, 13025), (1750, 10420), (2084, 8750), (2500, 7294), (2605, 7000), (3500, 5210), (3647, 5000), (4168, 4375)]