263485753220

素因数分解:

$2^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{1289}}^1\times {\mathrm{16673}}^1$

素因数の和:18584

約数の個数: 48

約数和(自身を含む): 554685954480

約数和(自身を除く): 291200201260

約数列:

[1, 2, 4, 5, 10, 20, 613, 1226, 1289, 2452, 2578, 3065, 5156, 6130, 6445, 12260, 12890, 16673, 25780, 33346, 66692, 83365, 166730, 333460, 790157, 1580314, 3160628, 3950785, 7901570, 10220549, 15803140, 20441098, 21491497, 40882196, 42982994, 51102745, 85965988, 102205490, 107457485, 204410980, 214914970, 429829940, 13174287661, 26348575322, 52697150644, 65871438305, 131742876610, 263485753220]

約数ペア:

[(1, 263485753220), (2, 131742876610), (4, 65871438305), (5, 52697150644), (10, 26348575322), (20, 13174287661), (613, 429829940), (1226, 214914970), (1289, 204410980), (2452, 107457485), (2578, 102205490), (3065, 85965988), (5156, 51102745), (6130, 42982994), (6445, 40882196), (12260, 21491497), (12890, 20441098), (16673, 15803140), (25780, 10220549), (33346, 7901570), (66692, 3950785), (83365, 3160628), (166730, 1580314), (333460, 790157)]