210991640

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{12589}}^1$

素因数の和:13019

約数の個数: 32

約数和(自身を含む): 475902000

約数和(自身を除く): 264910360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 3352, 4190, 8380, 12589, 16760, 25178, 50356, 62945, 100712, 125890, 251780, 503560, 5274791, 10549582, 21099164, 26373955, 42198328, 52747910, 105495820, 210991640]

約数ペア:

[(1, 210991640), (2, 105495820), (4, 52747910), (5, 42198328), (8, 26373955), (10, 21099164), (20, 10549582), (40, 5274791), (419, 503560), (838, 251780), (1676, 125890), (2095, 100712), (3352, 62945), (4190, 50356), (8380, 25178), (12589, 16760)]