80137720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{154111}}^1$

素因数の和:154135

約数の個数: 32

約数和(自身を含む): 194181120

約数和(自身を除く): 114043400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 154111, 308222, 616444, 770555, 1232888, 1541110, 2003443, 3082220, 4006886, 6164440, 8013772, 10017215, 16027544, 20034430, 40068860, 80137720]

約数ペア:

[(1, 80137720), (2, 40068860), (4, 20034430), (5, 16027544), (8, 10017215), (10, 8013772), (13, 6164440), (20, 4006886), (26, 3082220), (40, 2003443), (52, 1541110), (65, 1232888), (104, 770555), (130, 616444), (260, 308222), (520, 154111)]