16851920

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{673}}^1$

素因数の和:999

約数の個数: 40

約数和(自身を含む): 39364296

約数和(自身を除く): 22512376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 673, 1252, 1346, 1565, 2504, 2692, 3130, 3365, 5008, 5384, 6260, 6730, 10768, 12520, 13460, 25040, 26920, 53840, 210649, 421298, 842596, 1053245, 1685192, 2106490, 3370384, 4212980, 8425960, 16851920]

約数ペア:

[(1, 16851920), (2, 8425960), (4, 4212980), (5, 3370384), (8, 2106490), (10, 1685192), (16, 1053245), (20, 842596), (40, 421298), (80, 210649), (313, 53840), (626, 26920), (673, 25040), (1252, 13460), (1346, 12520), (1565, 10768), (2504, 6730), (2692, 6260), (3130, 5384), (3365, 5008)]