203771920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{231559}}^1$

素因数の和:231583

約数の個数: 40

約数和(自身を含む): 516841920

約数和(自身を除く): 313070000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 231559, 463118, 926236, 1157795, 1852472, 2315590, 2547149, 3704944, 4631180, 5094298, 9262360, 10188596, 12735745, 18524720, 20377192, 25471490, 40754384, 50942980, 101885960, 203771920]

約数ペア:

[(1, 203771920), (2, 101885960), (4, 50942980), (5, 40754384), (8, 25471490), (10, 20377192), (11, 18524720), (16, 12735745), (20, 10188596), (22, 9262360), (40, 5094298), (44, 4631180), (55, 3704944), (80, 2547149), (88, 2315590), (110, 1852472), (176, 1157795), (220, 926236), (440, 463118), (880, 231559)]