20986030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4363}}^1$

素因数の和:4420

約数の個数: 32

約数和(自身を含む): 41789664

約数和(自身を除く): 20803634

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4363, 4810, 8726, 21815, 43630, 56719, 113438, 161431, 283595, 322862, 567190, 807155, 1614310, 2098603, 4197206, 10493015, 20986030]

約数ペア:

[(1, 20986030), (2, 10493015), (5, 4197206), (10, 2098603), (13, 1614310), (26, 807155), (37, 567190), (65, 322862), (74, 283595), (130, 161431), (185, 113438), (370, 56719), (481, 43630), (962, 21815), (2405, 8726), (4363, 4810)]