84996020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 182138880

約数和(自身を除く): 97142860

約数列:

[1, 2, 4, 5, 10, 20, 109, 127, 218, 254, 307, 436, 508, 545, 614, 635, 1090, 1228, 1270, 1535, 2180, 2540, 3070, 6140, 13843, 27686, 33463, 38989, 55372, 66926, 69215, 77978, 133852, 138430, 155956, 167315, 194945, 276860, 334630, 389890, 669260, 779780, 4249801, 8499602, 16999204, 21249005, 42498010, 84996020]

約数ペア:

[(1, 84996020), (2, 42498010), (4, 21249005), (5, 16999204), (10, 8499602), (20, 4249801), (109, 779780), (127, 669260), (218, 389890), (254, 334630), (307, 276860), (436, 194945), (508, 167315), (545, 155956), (614, 138430), (635, 133852), (1090, 77978), (1228, 69215), (1270, 66926), (1535, 55372), (2180, 38989), (2540, 33463), (3070, 27686), (6140, 13843)]