91111720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2341}}^1$

素因数の和:2498

約数の個数: 64

約数和(自身を含む): 236073600

約数和(自身を除く): 144961880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2341, 2780, 3892, 4682, 4865, 5560, 7784, 9364, 9730, 11705, 16387, 18728, 19460, 23410, 32774, 38920, 46820, 65548, 81935, 93640, 131096, 163870, 325399, 327740, 650798, 655480, 1301596, 1626995, 2277793, 2603192, 3253990, 4555586, 6507980, 9111172, 11388965, 13015960, 18222344, 22777930, 45555860, 91111720]

約数ペア:

[(1, 91111720), (2, 45555860), (4, 22777930), (5, 18222344), (7, 13015960), (8, 11388965), (10, 9111172), (14, 6507980), (20, 4555586), (28, 3253990), (35, 2603192), (40, 2277793), (56, 1626995), (70, 1301596), (139, 655480), (140, 650798), (278, 327740), (280, 325399), (556, 163870), (695, 131096), (973, 93640), (1112, 81935), (1390, 65548), (1946, 46820), (2341, 38920), (2780, 32774), (3892, 23410), (4682, 19460), (4865, 18728), (5560, 16387), (7784, 11705), (9364, 9730)]