19393040

素因数分解:

$2^4\times 5^1\times {\mathrm{242413}}^1$

素因数の和:242426

約数の個数: 20

約数和(自身を含む): 45089004

約数和(自身を除く): 25695964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242413, 484826, 969652, 1212065, 1939304, 2424130, 3878608, 4848260, 9696520, 19393040]

約数ペア:

[(1, 19393040), (2, 9696520), (4, 4848260), (5, 3878608), (8, 2424130), (10, 1939304), (16, 1212065), (20, 969652), (40, 484826), (80, 242413)]