20871806205

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{373}}^1\times {\mathrm{673}}^1$

素因数の和:1318

約数の個数: 64

約数和(自身を含む): 35137377792

約数和(自身を除く): 14265571587

約数列:

[1, 3, 5, 15, 23, 69, 115, 241, 345, 373, 673, 723, 1119, 1205, 1865, 2019, 3365, 3615, 5543, 5595, 8579, 10095, 15479, 16629, 25737, 27715, 42895, 46437, 77395, 83145, 89893, 128685, 162193, 232185, 251029, 269679, 449465, 486579, 753087, 810965, 1255145, 1348395, 2067539, 2432895, 3730439, 3765435, 5773667, 6202617, 10337695, 11191317, 17321001, 18652195, 28868335, 31013085, 55956585, 60497989, 86605005, 181493967, 302489945, 907469835, 1391453747, 4174361241, 6957268735, 20871806205]

約数ペア:

[(1, 20871806205), (3, 6957268735), (5, 4174361241), (15, 1391453747), (23, 907469835), (69, 302489945), (115, 181493967), (241, 86605005), (345, 60497989), (373, 55956585), (673, 31013085), (723, 28868335), (1119, 18652195), (1205, 17321001), (1865, 11191317), (2019, 10337695), (3365, 6202617), (3615, 5773667), (5543, 3765435), (5595, 3730439), (8579, 2432895), (10095, 2067539), (15479, 1348395), (16629, 1255145), (25737, 810965), (27715, 753087), (42895, 486579), (46437, 449465), (77395, 269679), (83145, 251029), (89893, 232185), (128685, 162193)]