129407920

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:458

約数の個数: 80

約数和(自身を含む): 310837248

約数和(自身を除く): 181429328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 127, 188, 235, 254, 271, 376, 470, 508, 542, 635, 752, 940, 1016, 1084, 1270, 1355, 1880, 2032, 2168, 2540, 2710, 3760, 4336, 5080, 5420, 5969, 10160, 10840, 11938, 12737, 21680, 23876, 25474, 29845, 34417, 47752, 50948, 59690, 63685, 68834, 95504, 101896, 119380, 127370, 137668, 172085, 203792, 238760, 254740, 275336, 344170, 477520, 509480, 550672, 688340, 1018960, 1376680, 1617599, 2753360, 3235198, 6470396, 8087995, 12940792, 16175990, 25881584, 32351980, 64703960, 129407920]

約数ペア:

[(1, 129407920), (2, 64703960), (4, 32351980), (5, 25881584), (8, 16175990), (10, 12940792), (16, 8087995), (20, 6470396), (40, 3235198), (47, 2753360), (80, 1617599), (94, 1376680), (127, 1018960), (188, 688340), (235, 550672), (254, 509480), (271, 477520), (376, 344170), (470, 275336), (508, 254740), (542, 238760), (635, 203792), (752, 172085), (940, 137668), (1016, 127370), (1084, 119380), (1270, 101896), (1355, 95504), (1880, 68834), (2032, 63685), (2168, 59690), (2540, 50948), (2710, 47752), (3760, 34417), (4336, 29845), (5080, 25474), (5420, 23876), (5969, 21680), (10160, 12737), (10840, 11938)]