256513712

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4297}}^1$

素因数の和:4366

約数の個数: 80

約数和(自身を含む): 626751552

約数和(自身を除く): 370237840

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 41, 52, 56, 82, 91, 104, 112, 164, 182, 208, 287, 328, 364, 533, 574, 656, 728, 1066, 1148, 1456, 2132, 2296, 3731, 4264, 4297, 4592, 7462, 8528, 8594, 14924, 17188, 29848, 30079, 34376, 55861, 59696, 60158, 68752, 111722, 120316, 176177, 223444, 240632, 352354, 391027, 446888, 481264, 704708, 782054, 893776, 1233239, 1409416, 1564108, 2290301, 2466478, 2818832, 3128216, 4580602, 4932956, 6256432, 9161204, 9865912, 16032107, 18322408, 19731824, 32064214, 36644816, 64128428, 128256856, 256513712]

約数ペア:

[(1, 256513712), (2, 128256856), (4, 64128428), (7, 36644816), (8, 32064214), (13, 19731824), (14, 18322408), (16, 16032107), (26, 9865912), (28, 9161204), (41, 6256432), (52, 4932956), (56, 4580602), (82, 3128216), (91, 2818832), (104, 2466478), (112, 2290301), (164, 1564108), (182, 1409416), (208, 1233239), (287, 893776), (328, 782054), (364, 704708), (533, 481264), (574, 446888), (656, 391027), (728, 352354), (1066, 240632), (1148, 223444), (1456, 176177), (2132, 120316), (2296, 111722), (3731, 68752), (4264, 60158), (4297, 59696), (4592, 55861), (7462, 34376), (8528, 30079), (8594, 29848), (14924, 17188)]