278577068

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^2$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 621304320

約数和(自身を除く): 342727252

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 79, 107, 154, 158, 214, 308, 316, 428, 553, 749, 869, 1106, 1177, 1498, 1738, 2212, 2354, 2996, 3476, 4708, 6083, 8239, 8453, 11449, 12166, 16478, 16906, 22898, 24332, 32956, 33812, 45796, 59171, 80143, 92983, 118342, 125939, 160286, 185966, 236684, 251878, 320572, 371932, 503756, 650881, 881573, 904471, 1301762, 1763146, 1808942, 2603524, 3526292, 3617884, 6331297, 9949181, 12662594, 19898362, 25325188, 39796724, 69644267, 139288534, 278577068]

約数ペア:

[(1, 278577068), (2, 139288534), (4, 69644267), (7, 39796724), (11, 25325188), (14, 19898362), (22, 12662594), (28, 9949181), (44, 6331297), (77, 3617884), (79, 3526292), (107, 2603524), (154, 1808942), (158, 1763146), (214, 1301762), (308, 904471), (316, 881573), (428, 650881), (553, 503756), (749, 371932), (869, 320572), (1106, 251878), (1177, 236684), (1498, 185966), (1738, 160286), (2212, 125939), (2354, 118342), (2996, 92983), (3476, 80143), (4708, 59171), (6083, 45796), (8239, 33812), (8453, 32956), (11449, 24332), (12166, 22898), (16478, 16906)]