40019720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76961}}^1$

素因数の和:76985

約数の個数: 32

約数和(自身を含む): 96972120

約数和(自身を除く): 56952400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 76961, 153922, 307844, 384805, 615688, 769610, 1000493, 1539220, 2000986, 3078440, 4001972, 5002465, 8003944, 10004930, 20009860, 40019720]

約数ペア:

[(1, 40019720), (2, 20009860), (4, 10004930), (5, 8003944), (8, 5002465), (10, 4001972), (13, 3078440), (20, 2000986), (26, 1539220), (40, 1000493), (52, 769610), (65, 615688), (104, 384805), (130, 307844), (260, 153922), (520, 76961)]