31381540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{307}}^1$

素因数の和:604

約数の個数: 48

約数和(自身を含む): 69854400

約数和(自身を除く): 38472860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 269, 307, 380, 538, 614, 1076, 1228, 1345, 1535, 2690, 3070, 5111, 5380, 5833, 6140, 10222, 11666, 20444, 23332, 25555, 29165, 51110, 58330, 82583, 102220, 116660, 165166, 330332, 412915, 825830, 1569077, 1651660, 3138154, 6276308, 7845385, 15690770, 31381540]

約数ペア:

[(1, 31381540), (2, 15690770), (4, 7845385), (5, 6276308), (10, 3138154), (19, 1651660), (20, 1569077), (38, 825830), (76, 412915), (95, 330332), (190, 165166), (269, 116660), (307, 102220), (380, 82583), (538, 58330), (614, 51110), (1076, 29165), (1228, 25555), (1345, 23332), (1535, 20444), (2690, 11666), (3070, 10222), (5111, 6140), (5380, 5833)]