217984910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:234

約数の個数: 128

約数和(自身を含む): 496419840

約数和(自身を除く): 278434930

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 55, 65, 71, 95, 110, 113, 130, 142, 143, 190, 209, 226, 247, 286, 355, 418, 494, 565, 710, 715, 781, 923, 1045, 1130, 1235, 1243, 1349, 1430, 1469, 1562, 1846, 2090, 2147, 2470, 2486, 2698, 2717, 2938, 3905, 4294, 4615, 5434, 6215, 6745, 7345, 7810, 8023, 9230, 10153, 10735, 12430, 13490, 13585, 14690, 14839, 16046, 16159, 17537, 20306, 21470, 23617, 27170, 27911, 29678, 32318, 35074, 40115, 47234, 50765, 55822, 74195, 80230, 80795, 87685, 88253, 101530, 104299, 118085, 139555, 148390, 152437, 161590, 175370, 176506, 192907, 208598, 236170, 279110, 304874, 307021, 385814, 441265, 521495, 614042, 762185, 882530, 964535, 1042990, 1147289, 1524370, 1535105, 1676807, 1929070, 1981681, 2294578, 3070210, 3353614, 3963362, 5736445, 8384035, 9908405, 11472890, 16768070, 19816810, 21798491, 43596982, 108992455, 217984910]

約数ペア:

[(1, 217984910), (2, 108992455), (5, 43596982), (10, 21798491), (11, 19816810), (13, 16768070), (19, 11472890), (22, 9908405), (26, 8384035), (38, 5736445), (55, 3963362), (65, 3353614), (71, 3070210), (95, 2294578), (110, 1981681), (113, 1929070), (130, 1676807), (142, 1535105), (143, 1524370), (190, 1147289), (209, 1042990), (226, 964535), (247, 882530), (286, 762185), (355, 614042), (418, 521495), (494, 441265), (565, 385814), (710, 307021), (715, 304874), (781, 279110), (923, 236170), (1045, 208598), (1130, 192907), (1235, 176506), (1243, 175370), (1349, 161590), (1430, 152437), (1469, 148390), (1562, 139555), (1846, 118085), (2090, 104299), (2147, 101530), (2470, 88253), (2486, 87685), (2698, 80795), (2717, 80230), (2938, 74195), (3905, 55822), (4294, 50765), (4615, 47234), (5434, 40115), (6215, 35074), (6745, 32318), (7345, 29678), (7810, 27911), (8023, 27170), (9230, 23617), (10153, 21470), (10735, 20306), (12430, 17537), (13490, 16159), (13585, 16046), (14690, 14839)]