20804557670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1801}}^1\times {\mathrm{5227}}^1$

素因数の和:7065

約数の個数: 64

約数和(自身を含む): 42733002816

約数和(自身を除く): 21928445146

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 1801, 2210, 3602, 5227, 9005, 10454, 18010, 23413, 26135, 30617, 46826, 52270, 61234, 67951, 88859, 117065, 135902, 153085, 177718, 234130, 306170, 339755, 398021, 444295, 679510, 796042, 888590, 1155167, 1990105, 2310334, 3980210, 5775835, 9413827, 11551670, 18827654, 47069135, 94138270, 122379751, 160035059, 244759502, 320070118, 611898755, 800175295, 1223797510, 1600350590, 2080455767, 4160911534, 10402278835, 20804557670]

約数ペア:

[(1, 20804557670), (2, 10402278835), (5, 4160911534), (10, 2080455767), (13, 1600350590), (17, 1223797510), (26, 800175295), (34, 611898755), (65, 320070118), (85, 244759502), (130, 160035059), (170, 122379751), (221, 94138270), (442, 47069135), (1105, 18827654), (1801, 11551670), (2210, 9413827), (3602, 5775835), (5227, 3980210), (9005, 2310334), (10454, 1990105), (18010, 1155167), (23413, 888590), (26135, 796042), (30617, 679510), (46826, 444295), (52270, 398021), (61234, 339755), (67951, 306170), (88859, 234130), (117065, 177718), (135902, 153085)]