20267260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77951}}^1$

素因数の和:77973

約数の個数: 24

約数和(自身を含む): 45835776

約数和(自身を除く): 25568516

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77951, 155902, 311804, 389755, 779510, 1013363, 1559020, 2026726, 4053452, 5066815, 10133630, 20267260]

約数ペア:

[(1, 20267260), (2, 10133630), (4, 5066815), (5, 4053452), (10, 2026726), (13, 1559020), (20, 1013363), (26, 779510), (52, 389755), (65, 311804), (130, 155902), (260, 77951)]