280904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:129

約数の個数: 32

約数和(自身を含む): 590520

約数和(自身を除く): 309616

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 73, 74, 104, 146, 148, 292, 296, 481, 584, 949, 962, 1898, 1924, 2701, 3796, 3848, 5402, 7592, 10804, 21608, 35113, 70226, 140452, 280904]

約数ペア:

[(1, 280904), (2, 140452), (4, 70226), (8, 35113), (13, 21608), (26, 10804), (37, 7592), (52, 5402), (73, 3848), (74, 3796), (104, 2701), (146, 1924), (148, 1898), (292, 962), (296, 949), (481, 584)]