128209750

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 257572224

約数和(自身を除く): 129362474

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 97, 125, 170, 194, 250, 311, 425, 485, 622, 850, 970, 1555, 1649, 2125, 2425, 3110, 3298, 4250, 4850, 5287, 7775, 8245, 10574, 12125, 15550, 16490, 24250, 26435, 30167, 38875, 41225, 52870, 60334, 77750, 82450, 132175, 150835, 206125, 264350, 301670, 412250, 512839, 660875, 754175, 1025678, 1321750, 1508350, 2564195, 3770875, 5128390, 7541750, 12820975, 25641950, 64104875, 128209750]

約数ペア:

[(1, 128209750), (2, 64104875), (5, 25641950), (10, 12820975), (17, 7541750), (25, 5128390), (34, 3770875), (50, 2564195), (85, 1508350), (97, 1321750), (125, 1025678), (170, 754175), (194, 660875), (250, 512839), (311, 412250), (425, 301670), (485, 264350), (622, 206125), (850, 150835), (970, 132175), (1555, 82450), (1649, 77750), (2125, 60334), (2425, 52870), (3110, 41225), (3298, 38875), (4250, 30167), (4850, 26435), (5287, 24250), (7775, 16490), (8245, 15550), (10574, 12125)]