87877720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{313849}}^1$

素因数の和:313867

約数の個数: 32

約数和(自身を含む): 225972000

約数和(自身を除く): 138094280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 313849, 627698, 1255396, 1569245, 2196943, 2510792, 3138490, 4393886, 6276980, 8787772, 10984715, 12553960, 17575544, 21969430, 43938860, 87877720]

約数ペア:

[(1, 87877720), (2, 43938860), (4, 21969430), (5, 17575544), (7, 12553960), (8, 10984715), (10, 8787772), (14, 6276980), (20, 4393886), (28, 3138490), (35, 2510792), (40, 2196943), (56, 1569245), (70, 1255396), (140, 627698), (280, 313849)]