26989040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25951}}^1$

素因数の和:25977

約数の個数: 40

約数和(自身を含む): 67579008

約数和(自身を除く): 40589968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 25951, 51902, 103804, 129755, 207608, 259510, 337363, 415216, 519020, 674726, 1038040, 1349452, 1686815, 2076080, 2698904, 3373630, 5397808, 6747260, 13494520, 26989040]

約数ペア:

[(1, 26989040), (2, 13494520), (4, 6747260), (5, 5397808), (8, 3373630), (10, 2698904), (13, 2076080), (16, 1686815), (20, 1349452), (26, 1038040), (40, 674726), (52, 519020), (65, 415216), (80, 337363), (104, 259510), (130, 207608), (208, 129755), (260, 103804), (520, 51902), (1040, 25951)]