19274840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{367}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 47295360

約数和(自身を除く): 28020520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 367, 404, 505, 520, 734, 808, 1010, 1313, 1468, 1835, 2020, 2626, 2936, 3670, 4040, 4771, 5252, 6565, 7340, 9542, 10504, 13130, 14680, 19084, 23855, 26260, 37067, 38168, 47710, 52520, 74134, 95420, 148268, 185335, 190840, 296536, 370670, 481871, 741340, 963742, 1482680, 1927484, 2409355, 3854968, 4818710, 9637420, 19274840]

約数ペア:

[(1, 19274840), (2, 9637420), (4, 4818710), (5, 3854968), (8, 2409355), (10, 1927484), (13, 1482680), (20, 963742), (26, 741340), (40, 481871), (52, 370670), (65, 296536), (101, 190840), (104, 185335), (130, 148268), (202, 95420), (260, 74134), (367, 52520), (404, 47710), (505, 38168), (520, 37067), (734, 26260), (808, 23855), (1010, 19084), (1313, 14680), (1468, 13130), (1835, 10504), (2020, 9542), (2626, 7340), (2936, 6565), (3670, 5252), (4040, 4771)]