19696740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2039}}^1$

素因数の和:2081

約数の個数: 96

約数和(自身を含む): 65802240

約数和(自身を除く): 46105500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2039, 2415, 3220, 4078, 4830, 6117, 8156, 9660, 10195, 12234, 14273, 20390, 24468, 28546, 30585, 40780, 42819, 46897, 57092, 61170, 71365, 85638, 93794, 122340, 140691, 142730, 171276, 187588, 214095, 234485, 281382, 285460, 328279, 428190, 468970, 562764, 656558, 703455, 856380, 937940, 984837, 1313116, 1406910, 1641395, 1969674, 2813820, 3282790, 3939348, 4924185, 6565580, 9848370, 19696740]

約数ペア:

[(1, 19696740), (2, 9848370), (3, 6565580), (4, 4924185), (5, 3939348), (6, 3282790), (7, 2813820), (10, 1969674), (12, 1641395), (14, 1406910), (15, 1313116), (20, 984837), (21, 937940), (23, 856380), (28, 703455), (30, 656558), (35, 562764), (42, 468970), (46, 428190), (60, 328279), (69, 285460), (70, 281382), (84, 234485), (92, 214095), (105, 187588), (115, 171276), (138, 142730), (140, 140691), (161, 122340), (210, 93794), (230, 85638), (276, 71365), (322, 61170), (345, 57092), (420, 46897), (460, 42819), (483, 40780), (644, 30585), (690, 28546), (805, 24468), (966, 20390), (1380, 14273), (1610, 12234), (1932, 10195), (2039, 9660), (2415, 8156), (3220, 6117), (4078, 4830)]