278629904

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{643}}^1$

素因数の和:784

約数の個数: 80

約数和(自身を含む): 638209152

約数和(自身を除く): 359579248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 73, 106, 112, 146, 212, 292, 371, 424, 511, 584, 643, 742, 848, 1022, 1168, 1286, 1484, 2044, 2572, 2968, 3869, 4088, 4501, 5144, 5936, 7738, 8176, 9002, 10288, 15476, 18004, 27083, 30952, 34079, 36008, 46939, 54166, 61904, 68158, 72016, 93878, 108332, 136316, 187756, 216664, 238553, 272632, 328573, 375512, 433328, 477106, 545264, 657146, 751024, 954212, 1314292, 1908424, 2487767, 2628584, 3816848, 4975534, 5257168, 9951068, 17414369, 19902136, 34828738, 39804272, 69657476, 139314952, 278629904]

約数ペア:

[(1, 278629904), (2, 139314952), (4, 69657476), (7, 39804272), (8, 34828738), (14, 19902136), (16, 17414369), (28, 9951068), (53, 5257168), (56, 4975534), (73, 3816848), (106, 2628584), (112, 2487767), (146, 1908424), (212, 1314292), (292, 954212), (371, 751024), (424, 657146), (511, 545264), (584, 477106), (643, 433328), (742, 375512), (848, 328573), (1022, 272632), (1168, 238553), (1286, 216664), (1484, 187756), (2044, 136316), (2572, 108332), (2968, 93878), (3869, 72016), (4088, 68158), (4501, 61904), (5144, 54166), (5936, 46939), (7738, 36008), (8176, 34079), (9002, 30952), (10288, 27083), (15476, 18004)]