128256856

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4297}}^1$

素因数の和:4364

約数の個数: 64

約数和(自身を含む): 303266880

約数和(自身を除く): 175010024

約数列:

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

約数ペア:

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