208349720

素因数分解:

$2^3\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{2503}}^1$

素因数の和:4595

約数の個数: 32

約数和(自身を含む): 469199520

約数和(自身を除く): 260849800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2081, 2503, 4162, 5006, 8324, 10012, 10405, 12515, 16648, 20024, 20810, 25030, 41620, 50060, 83240, 100120, 5208743, 10417486, 20834972, 26043715, 41669944, 52087430, 104174860, 208349720]

約数ペア:

[(1, 208349720), (2, 104174860), (4, 52087430), (5, 41669944), (8, 26043715), (10, 20834972), (20, 10417486), (40, 5208743), (2081, 100120), (2503, 83240), (4162, 50060), (5006, 41620), (8324, 25030), (10012, 20810), (10405, 20024), (12515, 16648)]