19228640

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2557}}^1$

素因数の和:2619

約数の個数: 48

約数和(自身を含む): 46412352

約数和(自身を除く): 27183712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 160, 188, 235, 376, 470, 752, 940, 1504, 1880, 2557, 3760, 5114, 7520, 10228, 12785, 20456, 25570, 40912, 51140, 81824, 102280, 120179, 204560, 240358, 409120, 480716, 600895, 961432, 1201790, 1922864, 2403580, 3845728, 4807160, 9614320, 19228640]

約数ペア:

[(1, 19228640), (2, 9614320), (4, 4807160), (5, 3845728), (8, 2403580), (10, 1922864), (16, 1201790), (20, 961432), (32, 600895), (40, 480716), (47, 409120), (80, 240358), (94, 204560), (160, 120179), (188, 102280), (235, 81824), (376, 51140), (470, 40912), (752, 25570), (940, 20456), (1504, 12785), (1880, 10228), (2557, 7520), (3760, 5114)]