440380000

素因数分解:

$2^5\times 5^4\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:354

約数の個数: 120

約数和(自身を含む): 1099391832

約数和(自身を除く): 659011832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 97, 100, 125, 160, 194, 200, 227, 250, 388, 400, 454, 485, 500, 625, 776, 800, 908, 970, 1000, 1135, 1250, 1552, 1816, 1940, 2000, 2270, 2425, 2500, 3104, 3632, 3880, 4000, 4540, 4850, 5000, 5675, 7264, 7760, 9080, 9700, 10000, 11350, 12125, 15520, 18160, 19400, 20000, 22019, 22700, 24250, 28375, 36320, 38800, 44038, 45400, 48500, 56750, 60625, 77600, 88076, 90800, 97000, 110095, 113500, 121250, 141875, 176152, 181600, 194000, 220190, 227000, 242500, 283750, 352304, 388000, 440380, 454000, 485000, 550475, 567500, 704608, 880760, 908000, 970000, 1100950, 1135000, 1761520, 1940000, 2201900, 2270000, 2752375, 3523040, 4403800, 4540000, 5504750, 8807600, 11009500, 13761875, 17615200, 22019000, 27523750, 44038000, 55047500, 88076000, 110095000, 220190000, 440380000]

約数ペア:

[(1, 440380000), (2, 220190000), (4, 110095000), (5, 88076000), (8, 55047500), (10, 44038000), (16, 27523750), (20, 22019000), (25, 17615200), (32, 13761875), (40, 11009500), (50, 8807600), (80, 5504750), (97, 4540000), (100, 4403800), (125, 3523040), (160, 2752375), (194, 2270000), (200, 2201900), (227, 1940000), (250, 1761520), (388, 1135000), (400, 1100950), (454, 970000), (485, 908000), (500, 880760), (625, 704608), (776, 567500), (800, 550475), (908, 485000), (970, 454000), (1000, 440380), (1135, 388000), (1250, 352304), (1552, 283750), (1816, 242500), (1940, 227000), (2000, 220190), (2270, 194000), (2425, 181600), (2500, 176152), (3104, 141875), (3632, 121250), (3880, 113500), (4000, 110095), (4540, 97000), (4850, 90800), (5000, 88076), (5675, 77600), (7264, 60625), (7760, 56750), (9080, 48500), (9700, 45400), (10000, 44038), (11350, 38800), (12125, 36320), (15520, 28375), (18160, 24250), (19400, 22700), (20000, 22019)]