256832464

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3137}}^1$

素因数の和:3212

約数の個数: 80

約数和(自身を含む): 616353408

約数和(自身を除く): 359520944

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 43, 56, 68, 86, 112, 119, 136, 172, 238, 272, 301, 344, 476, 602, 688, 731, 952, 1204, 1462, 1904, 2408, 2924, 3137, 4816, 5117, 5848, 6274, 10234, 11696, 12548, 20468, 21959, 25096, 40936, 43918, 50192, 53329, 81872, 87836, 106658, 134891, 175672, 213316, 269782, 351344, 373303, 426632, 539564, 746606, 853264, 944237, 1079128, 1493212, 1888474, 2158256, 2293147, 2986424, 3776948, 4586294, 5972848, 7553896, 9172588, 15107792, 16052029, 18345176, 32104058, 36690352, 64208116, 128416232, 256832464]

約数ペア:

[(1, 256832464), (2, 128416232), (4, 64208116), (7, 36690352), (8, 32104058), (14, 18345176), (16, 16052029), (17, 15107792), (28, 9172588), (34, 7553896), (43, 5972848), (56, 4586294), (68, 3776948), (86, 2986424), (112, 2293147), (119, 2158256), (136, 1888474), (172, 1493212), (238, 1079128), (272, 944237), (301, 853264), (344, 746606), (476, 539564), (602, 426632), (688, 373303), (731, 351344), (952, 269782), (1204, 213316), (1462, 175672), (1904, 134891), (2408, 106658), (2924, 87836), (3137, 81872), (4816, 53329), (5117, 50192), (5848, 43918), (6274, 40936), (10234, 25096), (11696, 21959), (12548, 20468)]