26645840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25621}}^1$

素因数の和:25647

約数の個数: 40

約数和(自身を含む): 66719688

約数和(自身を除く): 40073848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 25621, 51242, 102484, 128105, 204968, 256210, 333073, 409936, 512420, 666146, 1024840, 1332292, 1665365, 2049680, 2664584, 3330730, 5329168, 6661460, 13322920, 26645840]

約数ペア:

[(1, 26645840), (2, 13322920), (4, 6661460), (5, 5329168), (8, 3330730), (10, 2664584), (13, 2049680), (16, 1665365), (20, 1332292), (26, 1024840), (40, 666146), (52, 512420), (65, 409936), (80, 333073), (104, 256210), (130, 204968), (208, 128105), (260, 102484), (520, 51242), (1040, 25621)]