219998072

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1\times {\mathrm{359}}^1$

素因数の和:756

約数の個数: 64

約数和(自身を含む): 489369600

約数和(自身を除く): 269371528

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 353, 359, 434, 706, 718, 868, 1412, 1436, 1736, 2471, 2513, 2824, 2872, 4942, 5026, 9884, 10052, 10943, 11129, 19768, 20104, 21886, 22258, 43772, 44516, 76601, 77903, 87544, 89032, 126727, 153202, 155806, 253454, 306404, 311612, 506908, 612808, 623224, 887089, 1013816, 1774178, 3548356, 3928537, 7096712, 7857074, 15714148, 27499759, 31428296, 54999518, 109999036, 219998072]

約数ペア:

[(1, 219998072), (2, 109999036), (4, 54999518), (7, 31428296), (8, 27499759), (14, 15714148), (28, 7857074), (31, 7096712), (56, 3928537), (62, 3548356), (124, 1774178), (217, 1013816), (248, 887089), (353, 623224), (359, 612808), (434, 506908), (706, 311612), (718, 306404), (868, 253454), (1412, 155806), (1436, 153202), (1736, 126727), (2471, 89032), (2513, 87544), (2824, 77903), (2872, 76601), (4942, 44516), (5026, 43772), (9884, 22258), (10052, 21886), (10943, 20104), (11129, 19768)]