278265680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:457

約数の個数: 160

約数和(自身を含む): 814233600

約数和(自身を除く): 535967920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 199, 220, 227, 280, 308, 385, 398, 440, 454, 560, 616, 770, 796, 880, 908, 995, 1135, 1232, 1393, 1540, 1589, 1592, 1816, 1990, 2189, 2270, 2497, 2786, 3080, 3178, 3184, 3632, 3980, 4378, 4540, 4994, 5572, 6160, 6356, 6965, 7945, 7960, 8756, 9080, 9988, 10945, 11144, 12485, 12712, 13930, 15323, 15890, 15920, 17479, 17512, 18160, 19976, 21890, 22288, 24970, 25424, 27860, 30646, 31780, 34958, 35024, 39952, 43780, 45173, 49940, 55720, 61292, 63560, 69916, 76615, 87395, 87560, 90346, 99880, 111440, 122584, 127120, 139832, 153230, 174790, 175120, 180692, 199760, 225865, 245168, 279664, 306460, 316211, 349580, 361384, 451730, 496903, 612920, 632422, 699160, 722768, 903460, 993806, 1225840, 1264844, 1398320, 1581055, 1806920, 1987612, 2484515, 2529688, 3162110, 3478321, 3613840, 3975224, 4969030, 5059376, 6324220, 6956642, 7950448, 9938060, 12648440, 13913284, 17391605, 19876120, 25296880, 27826568, 34783210, 39752240, 55653136, 69566420, 139132840, 278265680]

約数ペア:

[(1, 278265680), (2, 139132840), (4, 69566420), (5, 55653136), (7, 39752240), (8, 34783210), (10, 27826568), (11, 25296880), (14, 19876120), (16, 17391605), (20, 13913284), (22, 12648440), (28, 9938060), (35, 7950448), (40, 6956642), (44, 6324220), (55, 5059376), (56, 4969030), (70, 3975224), (77, 3613840), (80, 3478321), (88, 3162110), (110, 2529688), (112, 2484515), (140, 1987612), (154, 1806920), (176, 1581055), (199, 1398320), (220, 1264844), (227, 1225840), (280, 993806), (308, 903460), (385, 722768), (398, 699160), (440, 632422), (454, 612920), (560, 496903), (616, 451730), (770, 361384), (796, 349580), (880, 316211), (908, 306460), (995, 279664), (1135, 245168), (1232, 225865), (1393, 199760), (1540, 180692), (1589, 175120), (1592, 174790), (1816, 153230), (1990, 139832), (2189, 127120), (2270, 122584), (2497, 111440), (2786, 99880), (3080, 90346), (3178, 87560), (3184, 87395), (3632, 76615), (3980, 69916), (4378, 63560), (4540, 61292), (4994, 55720), (5572, 49940), (6160, 45173), (6356, 43780), (6965, 39952), (7945, 35024), (7960, 34958), (8756, 31780), (9080, 30646), (9988, 27860), (10945, 25424), (11144, 24970), (12485, 22288), (12712, 21890), (13930, 19976), (15323, 18160), (15890, 17512), (15920, 17479)]