28311612

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{541}}^1$

素因数の和:651

約数の個数: 72

約数和(自身を含む): 77852880

約数和(自身を除く): 49541268

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 89, 98, 147, 178, 196, 267, 294, 356, 534, 541, 588, 623, 1068, 1082, 1246, 1623, 1869, 2164, 2492, 3246, 3738, 3787, 4361, 6492, 7476, 7574, 8722, 11361, 13083, 15148, 17444, 22722, 26166, 26509, 45444, 48149, 52332, 53018, 79527, 96298, 106036, 144447, 159054, 192596, 288894, 318108, 337043, 577788, 674086, 1011129, 1348172, 2022258, 2359301, 4044516, 4718602, 7077903, 9437204, 14155806, 28311612]

約数ペア:

[(1, 28311612), (2, 14155806), (3, 9437204), (4, 7077903), (6, 4718602), (7, 4044516), (12, 2359301), (14, 2022258), (21, 1348172), (28, 1011129), (42, 674086), (49, 577788), (84, 337043), (89, 318108), (98, 288894), (147, 192596), (178, 159054), (196, 144447), (267, 106036), (294, 96298), (356, 79527), (534, 53018), (541, 52332), (588, 48149), (623, 45444), (1068, 26509), (1082, 26166), (1246, 22722), (1623, 17444), (1869, 15148), (2164, 13083), (2492, 11361), (3246, 8722), (3738, 7574), (3787, 7476), (4361, 6492)]