1799976940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{743}}^1\times {\mathrm{1361}}^1$

素因数の和:2202

約数の個数: 48

約数和(自身を含む): 3830379840

約数和(自身を除く): 2030402900

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 743, 890, 1361, 1486, 1780, 2722, 2972, 3715, 5444, 6805, 7430, 13610, 14860, 27220, 66127, 121129, 132254, 242258, 264508, 330635, 484516, 605645, 661270, 1011223, 1211290, 1322540, 2022446, 2422580, 4044892, 5056115, 10112230, 20224460, 89998847, 179997694, 359995388, 449994235, 899988470, 1799976940]

約数ペア:

[(1, 1799976940), (2, 899988470), (4, 449994235), (5, 359995388), (10, 179997694), (20, 89998847), (89, 20224460), (178, 10112230), (356, 5056115), (445, 4044892), (743, 2422580), (890, 2022446), (1361, 1322540), (1486, 1211290), (1780, 1011223), (2722, 661270), (2972, 605645), (3715, 484516), (5444, 330635), (6805, 264508), (7430, 242258), (13610, 132254), (14860, 121129), (27220, 66127)]