1815621275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1\times {\mathrm{419}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 2479008000

約数和(自身を除く): 663386725

約数列:

[1, 5, 13, 25, 65, 67, 199, 325, 335, 419, 871, 995, 1675, 2095, 2587, 4355, 4975, 5447, 10475, 12935, 13333, 21775, 27235, 28073, 64675, 66665, 83381, 136175, 140365, 173329, 333325, 364949, 416905, 701825, 866645, 1083953, 1824745, 2084525, 4333225, 5419765, 5586527, 9123725, 27098825, 27932635, 72624851, 139663175, 363124255, 1815621275]

約数ペア:

[(1, 1815621275), (5, 363124255), (13, 139663175), (25, 72624851), (65, 27932635), (67, 27098825), (199, 9123725), (325, 5586527), (335, 5419765), (419, 4333225), (871, 2084525), (995, 1824745), (1675, 1083953), (2095, 866645), (2587, 701825), (4355, 416905), (4975, 364949), (5447, 333325), (10475, 173329), (12935, 140365), (13333, 136175), (21775, 83381), (27235, 66665), (28073, 64675)]