127840940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1\times {\mathrm{443}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 275692032

約数和(自身を除く): 147851092

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 307, 443, 470, 614, 886, 940, 1228, 1535, 1772, 2215, 3070, 4430, 6140, 8860, 14429, 20821, 28858, 41642, 57716, 72145, 83284, 104105, 136001, 144290, 208210, 272002, 288580, 416420, 544004, 680005, 1360010, 2720020, 6392047, 12784094, 25568188, 31960235, 63920470, 127840940]

約数ペア:

[(1, 127840940), (2, 63920470), (4, 31960235), (5, 25568188), (10, 12784094), (20, 6392047), (47, 2720020), (94, 1360010), (188, 680005), (235, 544004), (307, 416420), (443, 288580), (470, 272002), (614, 208210), (886, 144290), (940, 136001), (1228, 104105), (1535, 83284), (1772, 72145), (2215, 57716), (3070, 41642), (4430, 28858), (6140, 20821), (8860, 14429)]