256865512

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{241}}^1\times {\mathrm{461}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 514857420

約数和(自身を除く): 257991908

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 241, 289, 461, 482, 578, 922, 964, 1156, 1844, 1928, 2312, 3688, 4097, 7837, 8194, 15674, 16388, 31348, 32776, 62696, 69649, 111101, 133229, 139298, 222202, 266458, 278596, 444404, 532916, 557192, 888808, 1065832, 1888717, 3777434, 7554868, 15109736, 32108189, 64216378, 128432756, 256865512]

約数ペア:

[(1, 256865512), (2, 128432756), (4, 64216378), (8, 32108189), (17, 15109736), (34, 7554868), (68, 3777434), (136, 1888717), (241, 1065832), (289, 888808), (461, 557192), (482, 532916), (578, 444404), (922, 278596), (964, 266458), (1156, 222202), (1844, 139298), (1928, 133229), (2312, 111101), (3688, 69649), (4097, 62696), (7837, 32776), (8194, 31348), (15674, 16388)]