257203408

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{18979}}^1$

素因数の和:19016

約数の個数: 60

約数和(自身を含む): 626036320

約数和(自身を除く): 368832912

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 121, 154, 176, 242, 308, 484, 616, 847, 968, 1232, 1694, 1936, 3388, 6776, 13552, 18979, 37958, 75916, 132853, 151832, 208769, 265706, 303664, 417538, 531412, 835076, 1062824, 1461383, 1670152, 2125648, 2296459, 2922766, 3340304, 4592918, 5845532, 9185836, 11691064, 16075213, 18371672, 23382128, 32150426, 36743344, 64300852, 128601704, 257203408]

約数ペア:

[(1, 257203408), (2, 128601704), (4, 64300852), (7, 36743344), (8, 32150426), (11, 23382128), (14, 18371672), (16, 16075213), (22, 11691064), (28, 9185836), (44, 5845532), (56, 4592918), (77, 3340304), (88, 2922766), (112, 2296459), (121, 2125648), (154, 1670152), (176, 1461383), (242, 1062824), (308, 835076), (484, 531412), (616, 417538), (847, 303664), (968, 265706), (1232, 208769), (1694, 151832), (1936, 132853), (3388, 75916), (6776, 37958), (13552, 18979)]