208711020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:272

約数の個数: 192

約数和(自身を含む): 695439360

約数和(自身を除く): 486728340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 97, 105, 109, 140, 141, 188, 194, 210, 218, 235, 282, 291, 327, 329, 388, 420, 436, 470, 485, 545, 564, 582, 654, 658, 679, 705, 763, 940, 970, 987, 1090, 1164, 1308, 1316, 1358, 1410, 1455, 1526, 1635, 1645, 1940, 1974, 2037, 2180, 2289, 2716, 2820, 2910, 3052, 3270, 3290, 3395, 3815, 3948, 4074, 4559, 4578, 4935, 5123, 5820, 6540, 6580, 6790, 7630, 8148, 9118, 9156, 9870, 10185, 10246, 10573, 11445, 13580, 13677, 15260, 15369, 18236, 19740, 20370, 20492, 21146, 22795, 22890, 25615, 27354, 30738, 31719, 31913, 35861, 40740, 42292, 45590, 45780, 51230, 52865, 54708, 61476, 63438, 63826, 68385, 71722, 74011, 76845, 91180, 95739, 102460, 105730, 107583, 126876, 127652, 136770, 143444, 148022, 153690, 158595, 159565, 179305, 191478, 211460, 215166, 222033, 273540, 296044, 307380, 317190, 319130, 358610, 370055, 382956, 430332, 444066, 478695, 496931, 537915, 634380, 638260, 717220, 740110, 888132, 957390, 993862, 1075830, 1110165, 1480220, 1490793, 1914780, 1987724, 2151660, 2220330, 2484655, 2981586, 3478517, 4440660, 4969310, 5963172, 6957034, 7453965, 9938620, 10435551, 13914068, 14907930, 17392585, 20871102, 29815860, 34785170, 41742204, 52177755, 69570340, 104355510, 208711020]

約数ペア:

[(1, 208711020), (2, 104355510), (3, 69570340), (4, 52177755), (5, 41742204), (6, 34785170), (7, 29815860), (10, 20871102), (12, 17392585), (14, 14907930), (15, 13914068), (20, 10435551), (21, 9938620), (28, 7453965), (30, 6957034), (35, 5963172), (42, 4969310), (47, 4440660), (60, 3478517), (70, 2981586), (84, 2484655), (94, 2220330), (97, 2151660), (105, 1987724), (109, 1914780), (140, 1490793), (141, 1480220), (188, 1110165), (194, 1075830), (210, 993862), (218, 957390), (235, 888132), (282, 740110), (291, 717220), (327, 638260), (329, 634380), (388, 537915), (420, 496931), (436, 478695), (470, 444066), (485, 430332), (545, 382956), (564, 370055), (582, 358610), (654, 319130), (658, 317190), (679, 307380), (705, 296044), (763, 273540), (940, 222033), (970, 215166), (987, 211460), (1090, 191478), (1164, 179305), (1308, 159565), (1316, 158595), (1358, 153690), (1410, 148022), (1455, 143444), (1526, 136770), (1635, 127652), (1645, 126876), (1940, 107583), (1974, 105730), (2037, 102460), (2180, 95739), (2289, 91180), (2716, 76845), (2820, 74011), (2910, 71722), (3052, 68385), (3270, 63826), (3290, 63438), (3395, 61476), (3815, 54708), (3948, 52865), (4074, 51230), (4559, 45780), (4578, 45590), (4935, 42292), (5123, 40740), (5820, 35861), (6540, 31913), (6580, 31719), (6790, 30738), (7630, 27354), (8148, 25615), (9118, 22890), (9156, 22795), (9870, 21146), (10185, 20492), (10246, 20370), (10573, 19740), (11445, 18236), (13580, 15369), (13677, 15260)]