201920475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 377118720

約数和(自身を除く): 175198245

約数列:

[1, 3, 5, 15, 17, 25, 29, 43, 51, 75, 85, 87, 127, 129, 145, 215, 255, 381, 425, 435, 493, 635, 645, 725, 731, 1075, 1247, 1275, 1479, 1905, 2159, 2175, 2193, 2465, 3175, 3225, 3655, 3683, 3741, 5461, 6235, 6477, 7395, 9525, 10795, 10965, 11049, 12325, 16383, 18275, 18415, 18705, 21199, 27305, 31175, 32385, 36975, 53975, 54825, 55245, 62611, 63597, 81915, 92075, 92837, 93525, 105995, 136525, 158369, 161925, 187833, 276225, 278511, 313055, 317985, 409575, 464185, 475107, 529975, 791845, 939165, 1392555, 1565275, 1589925, 2320925, 2375535, 2692273, 3959225, 4695825, 6962775, 8076819, 11877675, 13461365, 40384095, 67306825, 201920475]

約数ペア:

[(1, 201920475), (3, 67306825), (5, 40384095), (15, 13461365), (17, 11877675), (25, 8076819), (29, 6962775), (43, 4695825), (51, 3959225), (75, 2692273), (85, 2375535), (87, 2320925), (127, 1589925), (129, 1565275), (145, 1392555), (215, 939165), (255, 791845), (381, 529975), (425, 475107), (435, 464185), (493, 409575), (635, 317985), (645, 313055), (725, 278511), (731, 276225), (1075, 187833), (1247, 161925), (1275, 158369), (1479, 136525), (1905, 105995), (2159, 93525), (2175, 92837), (2193, 92075), (2465, 81915), (3175, 63597), (3225, 62611), (3655, 55245), (3683, 54825), (3741, 53975), (5461, 36975), (6235, 32385), (6477, 31175), (7395, 27305), (9525, 21199), (10795, 18705), (10965, 18415), (11049, 18275), (12325, 16383)]