51124640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{6521}}^1$

素因数の和:6550

約数の個数: 72

約数和(自身を含む): 140523012

約数和(自身を除く): 89398372

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 6521, 7840, 13042, 26084, 32605, 45647, 52168, 65210, 91294, 104336, 130420, 182588, 208672, 228235, 260840, 319529, 365176, 456470, 521680, 639058, 730352, 912940, 1043360, 1278116, 1460704, 1597645, 1825880, 2556232, 3195290, 3651760, 5112464, 6390580, 7303520, 10224928, 12781160, 25562320, 51124640]

約数ペア:

[(1, 51124640), (2, 25562320), (4, 12781160), (5, 10224928), (7, 7303520), (8, 6390580), (10, 5112464), (14, 3651760), (16, 3195290), (20, 2556232), (28, 1825880), (32, 1597645), (35, 1460704), (40, 1278116), (49, 1043360), (56, 912940), (70, 730352), (80, 639058), (98, 521680), (112, 456470), (140, 365176), (160, 319529), (196, 260840), (224, 228235), (245, 208672), (280, 182588), (392, 130420), (490, 104336), (560, 91294), (784, 65210), (980, 52168), (1120, 45647), (1568, 32605), (1960, 26084), (3920, 13042), (6521, 7840)]