2808650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:203

約数の個数: 48

約数和(自身を含む): 5859000

約数和(自身を除く): 3050350

約数列:

[1, 2, 5, 10, 13, 25, 26, 29, 50, 58, 65, 130, 145, 149, 290, 298, 325, 377, 650, 725, 745, 754, 1450, 1490, 1885, 1937, 3725, 3770, 3874, 4321, 7450, 8642, 9425, 9685, 18850, 19370, 21605, 43210, 48425, 56173, 96850, 108025, 112346, 216050, 280865, 561730, 1404325, 2808650]

約数ペア:

[(1, 2808650), (2, 1404325), (5, 561730), (10, 280865), (13, 216050), (25, 112346), (26, 108025), (29, 96850), (50, 56173), (58, 48425), (65, 43210), (130, 21605), (145, 19370), (149, 18850), (290, 9685), (298, 9425), (325, 8642), (377, 7450), (650, 4321), (725, 3874), (745, 3770), (754, 3725), (1450, 1937), (1490, 1885)]