40145680

素因数分解:

$2^4\times 5^1\times {\mathrm{501821}}^1$

素因数の和:501834

約数の個数: 20

約数和(自身を含む): 93338892

約数和(自身を除く): 53193212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 501821, 1003642, 2007284, 2509105, 4014568, 5018210, 8029136, 10036420, 20072840, 40145680]

約数ペア:

[(1, 40145680), (2, 20072840), (4, 10036420), (5, 8029136), (8, 5018210), (10, 4014568), (16, 2509105), (20, 2007284), (40, 1003642), (80, 501821)]