20769710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{811}}^1$

素因数の和:1028

約数の個数: 32

約数和(自身を含む): 40515552

約数和(自身を除く): 19745842

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 811, 985, 1622, 1970, 2561, 4055, 5122, 8110, 10543, 12805, 21086, 25610, 52715, 105430, 159767, 319534, 798835, 1597670, 2076971, 4153942, 10384855, 20769710]

約数ペア:

[(1, 20769710), (2, 10384855), (5, 4153942), (10, 2076971), (13, 1597670), (26, 798835), (65, 319534), (130, 159767), (197, 105430), (394, 52715), (811, 25610), (985, 21086), (1622, 12805), (1970, 10543), (2561, 8110), (4055, 5122)]