80122640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77041}}^1$

素因数の和:77067

約数の個数: 40

約数和(自身を含む): 200617368

約数和(自身を除く): 120494728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 77041, 154082, 308164, 385205, 616328, 770410, 1001533, 1232656, 1540820, 2003066, 3081640, 4006132, 5007665, 6163280, 8012264, 10015330, 16024528, 20030660, 40061320, 80122640]

約数ペア:

[(1, 80122640), (2, 40061320), (4, 20030660), (5, 16024528), (8, 10015330), (10, 8012264), (13, 6163280), (16, 5007665), (20, 4006132), (26, 3081640), (40, 2003066), (52, 1540820), (65, 1232656), (80, 1001533), (104, 770410), (130, 616328), (208, 385205), (260, 308164), (520, 154082), (1040, 77041)]