20985290

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1319}}^1$

素因数の和:1406

約数の個数: 32

約数和(自身を含む): 39726720

約数和(自身を除く): 18741430

約数列:

[1, 2, 5, 10, 37, 43, 74, 86, 185, 215, 370, 430, 1319, 1591, 2638, 3182, 6595, 7955, 13190, 15910, 48803, 56717, 97606, 113434, 244015, 283585, 488030, 567170, 2098529, 4197058, 10492645, 20985290]

約数ペア:

[(1, 20985290), (2, 10492645), (5, 4197058), (10, 2098529), (37, 567170), (43, 488030), (74, 283585), (86, 244015), (185, 113434), (215, 97606), (370, 56717), (430, 48803), (1319, 15910), (1591, 13190), (2638, 7955), (3182, 6595)]