383895580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1\times {\mathrm{661}}^1$

素因数の和:1150

約数の個数: 48

約数和(自身を含む): 820774080

約数和(自身を除く): 436878500

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 409, 661, 710, 818, 1322, 1420, 1636, 2045, 2644, 3305, 4090, 6610, 8180, 13220, 29039, 46931, 58078, 93862, 116156, 145195, 187724, 234655, 270349, 290390, 469310, 540698, 580780, 938620, 1081396, 1351745, 2703490, 5406980, 19194779, 38389558, 76779116, 95973895, 191947790, 383895580]

約数ペア:

[(1, 383895580), (2, 191947790), (4, 95973895), (5, 76779116), (10, 38389558), (20, 19194779), (71, 5406980), (142, 2703490), (284, 1351745), (355, 1081396), (409, 938620), (661, 580780), (710, 540698), (818, 469310), (1322, 290390), (1420, 270349), (1636, 234655), (2045, 187724), (2644, 145195), (3305, 116156), (4090, 93862), (6610, 58078), (8180, 46931), (13220, 29039)]