18851000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{2693}}^1$

素因数の和:2721

約数の個数: 64

約数和(自身を含む): 50431680

約数和(自身を除く): 31580680

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, 700, 875, 1000, 1400, 1750, 2693, 3500, 5386, 7000, 10772, 13465, 18851, 21544, 26930, 37702, 53860, 67325, 75404, 94255, 107720, 134650, 150808, 188510, 269300, 336625, 377020, 471275, 538600, 673250, 754040, 942550, 1346500, 1885100, 2356375, 2693000, 3770200, 4712750, 9425500, 18851000]

約数ペア:

[(1, 18851000), (2, 9425500), (4, 4712750), (5, 3770200), (7, 2693000), (8, 2356375), (10, 1885100), (14, 1346500), (20, 942550), (25, 754040), (28, 673250), (35, 538600), (40, 471275), (50, 377020), (56, 336625), (70, 269300), (100, 188510), (125, 150808), (140, 134650), (175, 107720), (200, 94255), (250, 75404), (280, 67325), (350, 53860), (500, 37702), (700, 26930), (875, 21544), (1000, 18851), (1400, 13465), (1750, 10772), (2693, 7000), (3500, 5386)]