2787260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{463}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 6859776

約数和(自身を除く): 4072516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 463, 602, 860, 926, 1204, 1505, 1852, 2315, 3010, 3241, 4630, 6020, 6482, 9260, 12964, 16205, 19909, 32410, 39818, 64820, 79636, 99545, 139363, 199090, 278726, 398180, 557452, 696815, 1393630, 2787260]

約数ペア:

[(1, 2787260), (2, 1393630), (4, 696815), (5, 557452), (7, 398180), (10, 278726), (14, 199090), (20, 139363), (28, 99545), (35, 79636), (43, 64820), (70, 39818), (86, 32410), (140, 19909), (172, 16205), (215, 12964), (301, 9260), (430, 6482), (463, 6020), (602, 4630), (860, 3241), (926, 3010), (1204, 2315), (1505, 1852)]