278380304

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 593712000

約数和(自身を除く): 315331696

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 68, 74, 136, 139, 148, 199, 272, 278, 296, 398, 556, 592, 629, 796, 1112, 1258, 1592, 2224, 2363, 2516, 3184, 3383, 4726, 5032, 5143, 6766, 7363, 9452, 10064, 10286, 13532, 14726, 18904, 20572, 27064, 27661, 29452, 37808, 41144, 54128, 55322, 58904, 82288, 87431, 110644, 117808, 125171, 174862, 221288, 250342, 349724, 442576, 470237, 500684, 699448, 940474, 1001368, 1023457, 1398896, 1880948, 2002736, 2046914, 3761896, 4093828, 7523792, 8187656, 16375312, 17398769, 34797538, 69595076, 139190152, 278380304]

約数ペア:

[(1, 278380304), (2, 139190152), (4, 69595076), (8, 34797538), (16, 17398769), (17, 16375312), (34, 8187656), (37, 7523792), (68, 4093828), (74, 3761896), (136, 2046914), (139, 2002736), (148, 1880948), (199, 1398896), (272, 1023457), (278, 1001368), (296, 940474), (398, 699448), (556, 500684), (592, 470237), (629, 442576), (796, 349724), (1112, 250342), (1258, 221288), (1592, 174862), (2224, 125171), (2363, 117808), (2516, 110644), (3184, 87431), (3383, 82288), (4726, 58904), (5032, 55322), (5143, 54128), (6766, 41144), (7363, 37808), (9452, 29452), (10064, 27661), (10286, 27064), (13532, 20572), (14726, 18904)]