20077720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38611}}^1$

素因数の和:38635

約数の個数: 32

約数和(自身を含む): 48651120

約数和(自身を除く): 28573400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38611, 77222, 154444, 193055, 308888, 386110, 501943, 772220, 1003886, 1544440, 2007772, 2509715, 4015544, 5019430, 10038860, 20077720]

約数ペア:

[(1, 20077720), (2, 10038860), (4, 5019430), (5, 4015544), (8, 2509715), (10, 2007772), (13, 1544440), (20, 1003886), (26, 772220), (40, 501943), (52, 386110), (65, 308888), (104, 193055), (130, 154444), (260, 77222), (520, 38611)]