28042812

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{433}}^1$

素因数の和:707

約数の個数: 72

約数和(自身を含む): 81515616

約数和(自身を除く): 53472804

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 257, 433, 514, 771, 866, 1028, 1299, 1542, 1732, 1799, 2313, 2598, 3031, 3084, 3598, 3897, 4626, 5196, 5397, 6062, 7196, 7794, 9093, 9252, 10794, 12124, 15588, 16191, 18186, 21588, 27279, 32382, 36372, 54558, 64764, 109116, 111281, 222562, 333843, 445124, 667686, 778967, 1001529, 1335372, 1557934, 2003058, 2336901, 3115868, 4006116, 4673802, 7010703, 9347604, 14021406, 28042812]

約数ペア:

[(1, 28042812), (2, 14021406), (3, 9347604), (4, 7010703), (6, 4673802), (7, 4006116), (9, 3115868), (12, 2336901), (14, 2003058), (18, 1557934), (21, 1335372), (28, 1001529), (36, 778967), (42, 667686), (63, 445124), (84, 333843), (126, 222562), (252, 111281), (257, 109116), (433, 64764), (514, 54558), (771, 36372), (866, 32382), (1028, 27279), (1299, 21588), (1542, 18186), (1732, 16191), (1799, 15588), (2313, 12124), (2598, 10794), (3031, 9252), (3084, 9093), (3598, 7794), (3897, 7196), (4626, 6062), (5196, 5397)]