127798280

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{31019}}^1$

素因数の和:31133

約数の個数: 32

約数和(自身を含む): 290347200

約数和(自身を除く): 162548920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 31019, 62038, 124076, 155095, 248152, 310190, 620380, 1240760, 3194957, 6389914, 12779828, 15974785, 25559656, 31949570, 63899140, 127798280]

約数ペア:

[(1, 127798280), (2, 63899140), (4, 31949570), (5, 25559656), (8, 15974785), (10, 12779828), (20, 6389914), (40, 3194957), (103, 1240760), (206, 620380), (412, 310190), (515, 248152), (824, 155095), (1030, 124076), (2060, 62038), (4120, 31019)]