689461388

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{1033}}^1$

素因数の和:1263

約数の個数: 72

約数和(自身を含む): 1524843936

約数和(自身を除く): 835382548

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 197, 242, 308, 394, 484, 788, 847, 1033, 1379, 1694, 2066, 2167, 2758, 3388, 4132, 4334, 5516, 7231, 8668, 11363, 14462, 15169, 22726, 23837, 28924, 30338, 45452, 47674, 60676, 79541, 95348, 124993, 159082, 166859, 203501, 249986, 318164, 333718, 407002, 499972, 667436, 814004, 874951, 1424507, 1749902, 2238511, 2849014, 3499804, 4477022, 5698028, 8954044, 15669577, 24623621, 31339154, 49247242, 62678308, 98494484, 172365347, 344730694, 689461388]

約数ペア:

[(1, 689461388), (2, 344730694), (4, 172365347), (7, 98494484), (11, 62678308), (14, 49247242), (22, 31339154), (28, 24623621), (44, 15669577), (77, 8954044), (121, 5698028), (154, 4477022), (197, 3499804), (242, 2849014), (308, 2238511), (394, 1749902), (484, 1424507), (788, 874951), (847, 814004), (1033, 667436), (1379, 499972), (1694, 407002), (2066, 333718), (2167, 318164), (2758, 249986), (3388, 203501), (4132, 166859), (4334, 159082), (5516, 124993), (7231, 95348), (8668, 79541), (11363, 60676), (14462, 47674), (15169, 45452), (22726, 30338), (23837, 28924)]