202917880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2341}}^1$

素因数の和:2560

約数の個数: 64

約数和(自身を含む): 500813280

約数和(自身を除く): 297895400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 394, 440, 788, 985, 1576, 1970, 2167, 2341, 3940, 4334, 4682, 7880, 8668, 9364, 10835, 11705, 17336, 18728, 21670, 23410, 25751, 43340, 46820, 51502, 86680, 93640, 103004, 128755, 206008, 257510, 461177, 515020, 922354, 1030040, 1844708, 2305885, 3689416, 4611770, 5072947, 9223540, 10145894, 18447080, 20291788, 25364735, 40583576, 50729470, 101458940, 202917880]

約数ペア:

[(1, 202917880), (2, 101458940), (4, 50729470), (5, 40583576), (8, 25364735), (10, 20291788), (11, 18447080), (20, 10145894), (22, 9223540), (40, 5072947), (44, 4611770), (55, 3689416), (88, 2305885), (110, 1844708), (197, 1030040), (220, 922354), (394, 515020), (440, 461177), (788, 257510), (985, 206008), (1576, 128755), (1970, 103004), (2167, 93640), (2341, 86680), (3940, 51502), (4334, 46820), (4682, 43340), (7880, 25751), (8668, 23410), (9364, 21670), (10835, 18728), (11705, 17336)]