206979280

素因数分解:

$2^4\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{2539}}^1$

素因数の和:3571

約数の個数: 40

約数和(自身を含む): 481888800

約数和(自身を除く): 274909520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1019, 2038, 2539, 4076, 5078, 5095, 8152, 10156, 10190, 12695, 16304, 20312, 20380, 25390, 40624, 40760, 50780, 81520, 101560, 203120, 2587241, 5174482, 10348964, 12936205, 20697928, 25872410, 41395856, 51744820, 103489640, 206979280]

約数ペア:

[(1, 206979280), (2, 103489640), (4, 51744820), (5, 41395856), (8, 25872410), (10, 20697928), (16, 12936205), (20, 10348964), (40, 5174482), (80, 2587241), (1019, 203120), (2038, 101560), (2539, 81520), (4076, 50780), (5078, 40760), (5095, 40624), (8152, 25390), (10156, 20380), (10190, 20312), (12695, 16304)]