647195920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{1543}}^1$

素因数の和:1677

約数の個数: 120

約数和(自身を含む): 1767904704

約数和(自身を除く): 1120708784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 107, 112, 140, 196, 214, 245, 280, 392, 428, 490, 535, 560, 749, 784, 856, 980, 1070, 1498, 1543, 1712, 1960, 2140, 2996, 3086, 3745, 3920, 4280, 5243, 5992, 6172, 7490, 7715, 8560, 10486, 10801, 11984, 12344, 14980, 15430, 20972, 21602, 24688, 26215, 29960, 30860, 41944, 43204, 52430, 54005, 59920, 61720, 75607, 83888, 86408, 104860, 108010, 123440, 151214, 165101, 172816, 209720, 216020, 302428, 330202, 378035, 419440, 432040, 604856, 660404, 756070, 825505, 864080, 1155707, 1209712, 1320808, 1512140, 1651010, 2311414, 2641616, 3024280, 3302020, 4622828, 5778535, 6048560, 6604040, 8089949, 9245656, 11557070, 13208080, 16179898, 18491312, 23114140, 32359796, 40449745, 46228280, 64719592, 80899490, 92456560, 129439184, 161798980, 323597960, 647195920]

約数ペア:

[(1, 647195920), (2, 323597960), (4, 161798980), (5, 129439184), (7, 92456560), (8, 80899490), (10, 64719592), (14, 46228280), (16, 40449745), (20, 32359796), (28, 23114140), (35, 18491312), (40, 16179898), (49, 13208080), (56, 11557070), (70, 9245656), (80, 8089949), (98, 6604040), (107, 6048560), (112, 5778535), (140, 4622828), (196, 3302020), (214, 3024280), (245, 2641616), (280, 2311414), (392, 1651010), (428, 1512140), (490, 1320808), (535, 1209712), (560, 1155707), (749, 864080), (784, 825505), (856, 756070), (980, 660404), (1070, 604856), (1498, 432040), (1543, 419440), (1712, 378035), (1960, 330202), (2140, 302428), (2996, 216020), (3086, 209720), (3745, 172816), (3920, 165101), (4280, 151214), (5243, 123440), (5992, 108010), (6172, 104860), (7490, 86408), (7715, 83888), (8560, 75607), (10486, 61720), (10801, 59920), (11984, 54005), (12344, 52430), (14980, 43204), (15430, 41944), (20972, 30860), (21602, 29960), (24688, 26215)]