81596680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3499}}^1$

素因数の和:3574

約数の個数: 64

約数和(自身を含む): 204120000

約数和(自身を除く): 122523320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 212, 220, 265, 424, 440, 530, 583, 1060, 1166, 2120, 2332, 2915, 3499, 4664, 5830, 6998, 11660, 13996, 17495, 23320, 27992, 34990, 38489, 69980, 76978, 139960, 153956, 185447, 192445, 307912, 370894, 384890, 741788, 769780, 927235, 1483576, 1539560, 1854470, 2039917, 3708940, 4079834, 7417880, 8159668, 10199585, 16319336, 20399170, 40798340, 81596680]

約数ペア:

[(1, 81596680), (2, 40798340), (4, 20399170), (5, 16319336), (8, 10199585), (10, 8159668), (11, 7417880), (20, 4079834), (22, 3708940), (40, 2039917), (44, 1854470), (53, 1539560), (55, 1483576), (88, 927235), (106, 769780), (110, 741788), (212, 384890), (220, 370894), (265, 307912), (424, 192445), (440, 185447), (530, 153956), (583, 139960), (1060, 76978), (1166, 69980), (2120, 38489), (2332, 34990), (2915, 27992), (3499, 23320), (4664, 17495), (5830, 13996), (6998, 11660)]