19693840

素因数分解:

$2^4\times 5^1\times {\mathrm{246173}}^1$

素因数の和:246186

約数の個数: 20

約数和(自身を含む): 45788364

約数和(自身を除く): 26094524

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246173, 492346, 984692, 1230865, 1969384, 2461730, 3938768, 4923460, 9846920, 19693840]

約数ペア:

[(1, 19693840), (2, 9846920), (4, 4923460), (5, 3938768), (8, 2461730), (10, 1969384), (16, 1230865), (20, 984692), (40, 492346), (80, 246173)]