209990690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:256

約数の個数: 128

約数和(自身を含む): 495452160

約数和(自身を除く): 285461470

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 35, 46, 65, 70, 79, 91, 115, 127, 130, 158, 161, 182, 230, 254, 299, 322, 395, 455, 553, 598, 635, 790, 805, 889, 910, 1027, 1106, 1270, 1495, 1610, 1651, 1778, 1817, 2054, 2093, 2765, 2921, 2990, 3302, 3634, 4186, 4445, 5135, 5530, 5842, 7189, 8255, 8890, 9085, 10033, 10270, 10465, 11557, 12719, 14378, 14605, 16510, 18170, 20066, 20447, 20930, 23114, 23621, 25438, 29210, 35945, 37973, 40894, 47242, 50165, 57785, 63595, 70231, 71890, 75946, 100330, 102235, 115570, 118105, 127190, 130429, 140462, 165347, 189865, 204470, 230759, 236210, 260858, 265811, 330694, 351155, 379730, 461518, 531622, 652145, 702310, 826735, 913003, 1153795, 1304290, 1329055, 1615313, 1653470, 1826006, 2307590, 2658110, 2999867, 3230626, 4565015, 5999734, 8076565, 9130030, 14999335, 16153130, 20999069, 29998670, 41998138, 104995345, 209990690]

約数ペア:

[(1, 209990690), (2, 104995345), (5, 41998138), (7, 29998670), (10, 20999069), (13, 16153130), (14, 14999335), (23, 9130030), (26, 8076565), (35, 5999734), (46, 4565015), (65, 3230626), (70, 2999867), (79, 2658110), (91, 2307590), (115, 1826006), (127, 1653470), (130, 1615313), (158, 1329055), (161, 1304290), (182, 1153795), (230, 913003), (254, 826735), (299, 702310), (322, 652145), (395, 531622), (455, 461518), (553, 379730), (598, 351155), (635, 330694), (790, 265811), (805, 260858), (889, 236210), (910, 230759), (1027, 204470), (1106, 189865), (1270, 165347), (1495, 140462), (1610, 130429), (1651, 127190), (1778, 118105), (1817, 115570), (2054, 102235), (2093, 100330), (2765, 75946), (2921, 71890), (2990, 70231), (3302, 63595), (3634, 57785), (4186, 50165), (4445, 47242), (5135, 40894), (5530, 37973), (5842, 35945), (7189, 29210), (8255, 25438), (8890, 23621), (9085, 23114), (10033, 20930), (10270, 20447), (10465, 20066), (11557, 18170), (12719, 16510), (14378, 14605)]