256988512

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{2141}}^1$

素因数の和:2204

約数の個数: 72

約数和(自身を含む): 574330176

約数和(自身を除く): 317341664

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 121, 124, 176, 242, 248, 341, 352, 484, 496, 682, 968, 992, 1364, 1936, 2141, 2728, 3751, 3872, 4282, 5456, 7502, 8564, 10912, 15004, 17128, 23551, 30008, 34256, 47102, 60016, 66371, 68512, 94204, 120032, 132742, 188408, 259061, 265484, 376816, 518122, 530968, 730081, 753632, 1036244, 1061936, 1460162, 2072488, 2123872, 2920324, 4144976, 5840648, 8030891, 8289952, 11681296, 16061782, 23362592, 32123564, 64247128, 128494256, 256988512]

約数ペア:

[(1, 256988512), (2, 128494256), (4, 64247128), (8, 32123564), (11, 23362592), (16, 16061782), (22, 11681296), (31, 8289952), (32, 8030891), (44, 5840648), (62, 4144976), (88, 2920324), (121, 2123872), (124, 2072488), (176, 1460162), (242, 1061936), (248, 1036244), (341, 753632), (352, 730081), (484, 530968), (496, 518122), (682, 376816), (968, 265484), (992, 259061), (1364, 188408), (1936, 132742), (2141, 120032), (2728, 94204), (3751, 68512), (3872, 66371), (4282, 60016), (5456, 47102), (7502, 34256), (8564, 30008), (10912, 23551), (15004, 17128)]