206780980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:774

約数の個数: 96

約数和(自身を含む): 518918400

約数和(自身を除く): 312137420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 343, 430, 490, 602, 686, 701, 860, 980, 1204, 1372, 1402, 1505, 1715, 2107, 2804, 3010, 3430, 3505, 4214, 4907, 6020, 6860, 7010, 8428, 9814, 10535, 14020, 14749, 19628, 21070, 24535, 29498, 30143, 34349, 42140, 49070, 58996, 60286, 68698, 73745, 98140, 120572, 137396, 147490, 150715, 171745, 211001, 240443, 294980, 301430, 343490, 422002, 480886, 602860, 686980, 844004, 961772, 1055005, 1202215, 1477007, 2110010, 2404430, 2954014, 4220020, 4808860, 5908028, 7385035, 10339049, 14770070, 20678098, 29540140, 41356196, 51695245, 103390490, 206780980]

約数ペア:

[(1, 206780980), (2, 103390490), (4, 51695245), (5, 41356196), (7, 29540140), (10, 20678098), (14, 14770070), (20, 10339049), (28, 7385035), (35, 5908028), (43, 4808860), (49, 4220020), (70, 2954014), (86, 2404430), (98, 2110010), (140, 1477007), (172, 1202215), (196, 1055005), (215, 961772), (245, 844004), (301, 686980), (343, 602860), (430, 480886), (490, 422002), (602, 343490), (686, 301430), (701, 294980), (860, 240443), (980, 211001), (1204, 171745), (1372, 150715), (1402, 147490), (1505, 137396), (1715, 120572), (2107, 98140), (2804, 73745), (3010, 68698), (3430, 60286), (3505, 58996), (4214, 49070), (4907, 42140), (6020, 34349), (6860, 30143), (7010, 29498), (8428, 24535), (9814, 21070), (10535, 19628), (14020, 14749)]