20015950

素因数分解:

$2^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{4127}}^1$

素因数の和:4236

約数の個数: 24

約数和(自身を含む): 37622592

約数和(自身を除く): 17606642

約数列:

[1, 2, 5, 10, 25, 50, 97, 194, 485, 970, 2425, 4127, 4850, 8254, 20635, 41270, 103175, 206350, 400319, 800638, 2001595, 4003190, 10007975, 20015950]

約数ペア:

[(1, 20015950), (2, 10007975), (5, 4003190), (10, 2001595), (25, 800638), (50, 400319), (97, 206350), (194, 103175), (485, 41270), (970, 20635), (2425, 8254), (4127, 4850)]