90777680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3449}}^1$

素因数の和:3516

約数の個数: 80

約数和(自身を含む): 246412800

約数和(自身を除く): 155635120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 752, 940, 1316, 1645, 1880, 2632, 3290, 3449, 3760, 5264, 6580, 6898, 13160, 13796, 17245, 24143, 26320, 27592, 34490, 48286, 55184, 68980, 96572, 120715, 137960, 162103, 193144, 241430, 275920, 324206, 386288, 482860, 648412, 810515, 965720, 1134721, 1296824, 1621030, 1931440, 2269442, 2593648, 3242060, 4538884, 5673605, 6484120, 9077768, 11347210, 12968240, 18155536, 22694420, 45388840, 90777680]

約数ペア:

[(1, 90777680), (2, 45388840), (4, 22694420), (5, 18155536), (7, 12968240), (8, 11347210), (10, 9077768), (14, 6484120), (16, 5673605), (20, 4538884), (28, 3242060), (35, 2593648), (40, 2269442), (47, 1931440), (56, 1621030), (70, 1296824), (80, 1134721), (94, 965720), (112, 810515), (140, 648412), (188, 482860), (235, 386288), (280, 324206), (329, 275920), (376, 241430), (470, 193144), (560, 162103), (658, 137960), (752, 120715), (940, 96572), (1316, 68980), (1645, 55184), (1880, 48286), (2632, 34490), (3290, 27592), (3449, 26320), (3760, 24143), (5264, 17245), (6580, 13796), (6898, 13160)]