217657930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{419}}^1$

素因数の和:655

約数の個数: 64

約数和(自身を含む): 462309120

約数和(自身を除く): 244651190

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 181, 205, 287, 362, 410, 419, 574, 838, 905, 1267, 1435, 1810, 2095, 2534, 2870, 2933, 4190, 5866, 6335, 7421, 12670, 14665, 14842, 17179, 29330, 34358, 37105, 51947, 74210, 75839, 85895, 103894, 120253, 151678, 171790, 240506, 259735, 379195, 519470, 530873, 601265, 758390, 1061746, 1202530, 2654365, 3109399, 5308730, 6218798, 15546995, 21765793, 31093990, 43531586, 108828965, 217657930]

約数ペア:

[(1, 217657930), (2, 108828965), (5, 43531586), (7, 31093990), (10, 21765793), (14, 15546995), (35, 6218798), (41, 5308730), (70, 3109399), (82, 2654365), (181, 1202530), (205, 1061746), (287, 758390), (362, 601265), (410, 530873), (419, 519470), (574, 379195), (838, 259735), (905, 240506), (1267, 171790), (1435, 151678), (1810, 120253), (2095, 103894), (2534, 85895), (2870, 75839), (2933, 74210), (4190, 51947), (5866, 37105), (6335, 34358), (7421, 29330), (12670, 17179), (14665, 14842)]