16801900

素因数分解:

$2^2\times 5^2\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:834

約数の個数: 36

約数和(自身を含む): 36638280

約数和(自身を除く): 19836380

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 401, 419, 802, 838, 1604, 1676, 2005, 2095, 4010, 4190, 8020, 8380, 10025, 10475, 20050, 20950, 40100, 41900, 168019, 336038, 672076, 840095, 1680190, 3360380, 4200475, 8400950, 16801900]

約数ペア:

[(1, 16801900), (2, 8400950), (4, 4200475), (5, 3360380), (10, 1680190), (20, 840095), (25, 672076), (50, 336038), (100, 168019), (401, 41900), (419, 40100), (802, 20950), (838, 20050), (1604, 10475), (1676, 10025), (2005, 8380), (2095, 8020), (4010, 4190)]