247399344

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{353}}^1$

素因数の和:555

約数の個数: 120

約数和(自身を含む): 721299072

約数和(自身を除く): 473899728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 93, 124, 144, 157, 186, 248, 279, 314, 353, 372, 471, 496, 558, 628, 706, 744, 942, 1059, 1116, 1256, 1412, 1413, 1488, 1884, 2118, 2232, 2512, 2824, 2826, 3177, 3768, 4236, 4464, 4867, 5648, 5652, 6354, 7536, 8472, 9734, 10943, 11304, 12708, 14601, 16944, 19468, 21886, 22608, 25416, 29202, 32829, 38936, 43772, 43803, 50832, 55421, 58404, 65658, 77872, 87544, 87606, 98487, 110842, 116808, 131316, 166263, 175088, 175212, 196974, 221684, 233616, 262632, 332526, 350424, 393948, 443368, 498789, 525264, 665052, 700848, 787896, 886736, 997578, 1330104, 1575792, 1718051, 1995156, 2660208, 3436102, 3990312, 5154153, 6872204, 7980624, 10308306, 13744408, 15462459, 20616612, 27488816, 30924918, 41233224, 61849836, 82466448, 123699672, 247399344]

約数ペア:

[(1, 247399344), (2, 123699672), (3, 82466448), (4, 61849836), (6, 41233224), (8, 30924918), (9, 27488816), (12, 20616612), (16, 15462459), (18, 13744408), (24, 10308306), (31, 7980624), (36, 6872204), (48, 5154153), (62, 3990312), (72, 3436102), (93, 2660208), (124, 1995156), (144, 1718051), (157, 1575792), (186, 1330104), (248, 997578), (279, 886736), (314, 787896), (353, 700848), (372, 665052), (471, 525264), (496, 498789), (558, 443368), (628, 393948), (706, 350424), (744, 332526), (942, 262632), (1059, 233616), (1116, 221684), (1256, 196974), (1412, 175212), (1413, 175088), (1488, 166263), (1884, 131316), (2118, 116808), (2232, 110842), (2512, 98487), (2824, 87606), (2826, 87544), (3177, 77872), (3768, 65658), (4236, 58404), (4464, 55421), (4867, 50832), (5648, 43803), (5652, 43772), (6354, 38936), (7536, 32829), (8472, 29202), (9734, 25416), (10943, 22608), (11304, 21886), (12708, 19468), (14601, 16944)]