26979290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 28178470

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 71, 74, 79, 130, 142, 158, 185, 355, 370, 395, 481, 710, 790, 923, 962, 1027, 1846, 2054, 2405, 2627, 2923, 4615, 4810, 5135, 5254, 5609, 5846, 9230, 10270, 11218, 13135, 14615, 26270, 28045, 29230, 34151, 37999, 56090, 68302, 72917, 75998, 145834, 170755, 189995, 207533, 341510, 364585, 379990, 415066, 729170, 1037665, 2075330, 2697929, 5395858, 13489645, 26979290]

約数ペア:

[(1, 26979290), (2, 13489645), (5, 5395858), (10, 2697929), (13, 2075330), (26, 1037665), (37, 729170), (65, 415066), (71, 379990), (74, 364585), (79, 341510), (130, 207533), (142, 189995), (158, 170755), (185, 145834), (355, 75998), (370, 72917), (395, 68302), (481, 56090), (710, 37999), (790, 34151), (923, 29230), (962, 28045), (1027, 26270), (1846, 14615), (2054, 13135), (2405, 11218), (2627, 10270), (2923, 9230), (4615, 5846), (4810, 5609), (5135, 5254)]