28078220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{307}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 62868960

約数和(自身を除く): 34790740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 269, 307, 340, 538, 614, 1076, 1228, 1345, 1535, 2690, 3070, 4573, 5219, 5380, 6140, 9146, 10438, 18292, 20876, 22865, 26095, 45730, 52190, 82583, 91460, 104380, 165166, 330332, 412915, 825830, 1403911, 1651660, 2807822, 5615644, 7019555, 14039110, 28078220]

約数ペア:

[(1, 28078220), (2, 14039110), (4, 7019555), (5, 5615644), (10, 2807822), (17, 1651660), (20, 1403911), (34, 825830), (68, 412915), (85, 330332), (170, 165166), (269, 104380), (307, 91460), (340, 82583), (538, 52190), (614, 45730), (1076, 26095), (1228, 22865), (1345, 20876), (1535, 18292), (2690, 10438), (3070, 9146), (4573, 6140), (5219, 5380)]