19516740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1361}}^1$

素因数の和:1612

約数の個数: 48

約数和(自身を含む): 54915840

約数和(自身を除く): 35399100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 239, 478, 717, 956, 1195, 1361, 1434, 2390, 2722, 2868, 3585, 4083, 4780, 5444, 6805, 7170, 8166, 13610, 14340, 16332, 20415, 27220, 40830, 81660, 325279, 650558, 975837, 1301116, 1626395, 1951674, 3252790, 3903348, 4879185, 6505580, 9758370, 19516740]

約数ペア:

[(1, 19516740), (2, 9758370), (3, 6505580), (4, 4879185), (5, 3903348), (6, 3252790), (10, 1951674), (12, 1626395), (15, 1301116), (20, 975837), (30, 650558), (60, 325279), (239, 81660), (478, 40830), (717, 27220), (956, 20415), (1195, 16332), (1361, 14340), (1434, 13610), (2390, 8166), (2722, 7170), (2868, 6805), (3585, 5444), (4083, 4780)]