28190312

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 53978400

約数和(自身を除く): 25788088

約数列:

[1, 2, 4, 8, 101, 139, 202, 251, 278, 404, 502, 556, 808, 1004, 1112, 2008, 14039, 25351, 28078, 34889, 50702, 56156, 69778, 101404, 112312, 139556, 202808, 279112, 3523789, 7047578, 14095156, 28190312]

約数ペア:

[(1, 28190312), (2, 14095156), (4, 7047578), (8, 3523789), (101, 279112), (139, 202808), (202, 139556), (251, 112312), (278, 101404), (404, 69778), (502, 56156), (556, 50702), (808, 34889), (1004, 28078), (1112, 25351), (2008, 14039)]