20891024

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{547}}^1$

素因数の和:604

約数の個数: 80

約数和(自身を含む): 52187136

約数和(自身を除く): 31296112

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 56, 62, 77, 88, 112, 124, 154, 176, 217, 248, 308, 341, 434, 496, 547, 616, 682, 868, 1094, 1232, 1364, 1736, 2188, 2387, 2728, 3472, 3829, 4376, 4774, 5456, 6017, 7658, 8752, 9548, 12034, 15316, 16957, 19096, 24068, 30632, 33914, 38192, 42119, 48136, 61264, 67828, 84238, 96272, 118699, 135656, 168476, 186527, 237398, 271312, 336952, 373054, 474796, 673904, 746108, 949592, 1305689, 1492216, 1899184, 2611378, 2984432, 5222756, 10445512, 20891024]

約数ペア:

[(1, 20891024), (2, 10445512), (4, 5222756), (7, 2984432), (8, 2611378), (11, 1899184), (14, 1492216), (16, 1305689), (22, 949592), (28, 746108), (31, 673904), (44, 474796), (56, 373054), (62, 336952), (77, 271312), (88, 237398), (112, 186527), (124, 168476), (154, 135656), (176, 118699), (217, 96272), (248, 84238), (308, 67828), (341, 61264), (434, 48136), (496, 42119), (547, 38192), (616, 33914), (682, 30632), (868, 24068), (1094, 19096), (1232, 16957), (1364, 15316), (1736, 12034), (2188, 9548), (2387, 8752), (2728, 7658), (3472, 6017), (3829, 5456), (4376, 4774)]