20540726

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 33841152

約数和(自身を除く): 13300426

約数列:

[1, 2, 17, 34, 67, 71, 127, 134, 142, 254, 1139, 1207, 2159, 2278, 2414, 4318, 4757, 8509, 9017, 9514, 17018, 18034, 80869, 144653, 153289, 161738, 289306, 306578, 604139, 1208278, 10270363, 20540726]

約数ペア:

[(1, 20540726), (2, 10270363), (17, 1208278), (34, 604139), (67, 306578), (71, 289306), (127, 161738), (134, 153289), (142, 144653), (254, 80869), (1139, 18034), (1207, 17018), (2159, 9514), (2278, 9017), (2414, 8509), (4318, 4757)]