71850440

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3529}}^1$

素因数の和:4049

約数の個数: 32

約数和(自身を含む): 162027000

約数和(自身を除く): 90176560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 3529, 4072, 5090, 7058, 10180, 14116, 17645, 20360, 28232, 35290, 70580, 141160, 1796261, 3592522, 7185044, 8981305, 14370088, 17962610, 35925220, 71850440]

約数ペア:

[(1, 71850440), (2, 35925220), (4, 17962610), (5, 14370088), (8, 8981305), (10, 7185044), (20, 3592522), (40, 1796261), (509, 141160), (1018, 70580), (2036, 35290), (2545, 28232), (3529, 20360), (4072, 17645), (5090, 14116), (7058, 10180)]