71325320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3449}}^1$

素因数の和:3518

約数の個数: 64

約数和(自身を含む): 178848000

約数和(自身を除く): 107522680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1880, 2068, 2585, 3449, 4136, 5170, 6898, 10340, 13796, 17245, 20680, 27592, 34490, 37939, 68980, 75878, 137960, 151756, 162103, 189695, 303512, 324206, 379390, 648412, 758780, 810515, 1296824, 1517560, 1621030, 1783133, 3242060, 3566266, 6484120, 7132532, 8915665, 14265064, 17831330, 35662660, 71325320]

約数ペア:

[(1, 71325320), (2, 35662660), (4, 17831330), (5, 14265064), (8, 8915665), (10, 7132532), (11, 6484120), (20, 3566266), (22, 3242060), (40, 1783133), (44, 1621030), (47, 1517560), (55, 1296824), (88, 810515), (94, 758780), (110, 648412), (188, 379390), (220, 324206), (235, 303512), (376, 189695), (440, 162103), (470, 151756), (517, 137960), (940, 75878), (1034, 68980), (1880, 37939), (2068, 34490), (2585, 27592), (3449, 20680), (4136, 17245), (5170, 13796), (6898, 10340)]