71315120

素因数分解:

$2^4\times 5^1\times {\mathrm{891439}}^1$

素因数の和:891452

約数の個数: 20

約数和(自身を含む): 165807840

約数和(自身を除く): 94492720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 891439, 1782878, 3565756, 4457195, 7131512, 8914390, 14263024, 17828780, 35657560, 71315120]

約数ペア:

[(1, 71315120), (2, 35657560), (4, 17828780), (5, 14263024), (8, 8914390), (10, 7131512), (16, 4457195), (20, 3565756), (40, 1782878), (80, 891439)]