40009040

素因数分解:

$2^4\times 5^1\times {\mathrm{500113}}^1$

素因数の和:500126

約数の個数: 20

約数和(自身を含む): 93021204

約数和(自身を除く): 53012164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 500113, 1000226, 2000452, 2500565, 4000904, 5001130, 8001808, 10002260, 20004520, 40009040]

約数ペア:

[(1, 40009040), (2, 20004520), (4, 10002260), (5, 8001808), (8, 5001130), (10, 4000904), (16, 2500565), (20, 2000452), (40, 1000226), (80, 500113)]