20504647540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{737047}}^1$

素因数の和:737176

約数の個数: 48

約数和(自身を含む): 46805496192

約数和(自身を除く): 26300848652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 428, 535, 1070, 1391, 2140, 2782, 5564, 6955, 13910, 27820, 737047, 1474094, 2948188, 3685235, 7370470, 9581611, 14740940, 19163222, 38326444, 47908055, 78864029, 95816110, 157728058, 191632220, 315456116, 394320145, 788640290, 1025232377, 1577280580, 2050464754, 4100929508, 5126161885, 10252323770, 20504647540]

約数ペア:

[(1, 20504647540), (2, 10252323770), (4, 5126161885), (5, 4100929508), (10, 2050464754), (13, 1577280580), (20, 1025232377), (26, 788640290), (52, 394320145), (65, 315456116), (107, 191632220), (130, 157728058), (214, 95816110), (260, 78864029), (428, 47908055), (535, 38326444), (1070, 19163222), (1391, 14740940), (2140, 9581611), (2782, 7370470), (5564, 3685235), (6955, 2948188), (13910, 1474094), (27820, 737047)]