25292020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1093}}^1$

素因数の和:1204

約数の個数: 48

約数和(自身を含む): 57894480

約数和(自身を除く): 32602460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1093, 1157, 1780, 2186, 2314, 4372, 4628, 5465, 5785, 10930, 11570, 14209, 21860, 23140, 28418, 56836, 71045, 97277, 142090, 194554, 284180, 389108, 486385, 972770, 1264601, 1945540, 2529202, 5058404, 6323005, 12646010, 25292020]

約数ペア:

[(1, 25292020), (2, 12646010), (4, 6323005), (5, 5058404), (10, 2529202), (13, 1945540), (20, 1264601), (26, 972770), (52, 486385), (65, 389108), (89, 284180), (130, 194554), (178, 142090), (260, 97277), (356, 71045), (445, 56836), (890, 28418), (1093, 23140), (1157, 21860), (1780, 14209), (2186, 11570), (2314, 10930), (4372, 5785), (4628, 5465)]