40807040

素因数分解:

$2^7\times 5^1\times {\mathrm{63761}}^1$

素因数の和:63780

約数の個数: 32

約数和(自身を含む): 97555860

約数和(自身を除く): 56748820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 63761, 127522, 255044, 318805, 510088, 637610, 1020176, 1275220, 2040352, 2550440, 4080704, 5100880, 8161408, 10201760, 20403520, 40807040]

約数ペア:

[(1, 40807040), (2, 20403520), (4, 10201760), (5, 8161408), (8, 5100880), (10, 4080704), (16, 2550440), (20, 2040352), (32, 1275220), (40, 1020176), (64, 637610), (80, 510088), (128, 318805), (160, 255044), (320, 127522), (640, 63761)]