265793840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{255571}}^1$

素因数の和:255597

約数の個数: 40

約数和(自身を含む): 665509488

約数和(自身を除く): 399715648

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 255571, 511142, 1022284, 1277855, 2044568, 2555710, 3322423, 4089136, 5111420, 6644846, 10222840, 13289692, 16612115, 20445680, 26579384, 33224230, 53158768, 66448460, 132896920, 265793840]

約数ペア:

[(1, 265793840), (2, 132896920), (4, 66448460), (5, 53158768), (8, 33224230), (10, 26579384), (13, 20445680), (16, 16612115), (20, 13289692), (26, 10222840), (40, 6644846), (52, 5111420), (65, 4089136), (80, 3322423), (104, 2555710), (130, 2044568), (208, 1277855), (260, 1022284), (520, 511142), (1040, 255571)]