489691880

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1\times {\mathrm{283}}^1$

素因数の和:714

約数の個数: 64

約数和(自身を含む): 1116460800

約数和(自身を除く): 626768920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 239, 283, 362, 478, 566, 724, 905, 956, 1132, 1195, 1415, 1448, 1810, 1912, 2264, 2390, 2830, 3620, 4780, 5660, 7240, 9560, 11320, 43259, 51223, 67637, 86518, 102446, 135274, 173036, 204892, 216295, 256115, 270548, 338185, 346072, 409784, 432590, 512230, 541096, 676370, 865180, 1024460, 1352740, 1730360, 2048920, 2705480, 12242297, 24484594, 48969188, 61211485, 97938376, 122422970, 244845940, 489691880]

約数ペア:

[(1, 489691880), (2, 244845940), (4, 122422970), (5, 97938376), (8, 61211485), (10, 48969188), (20, 24484594), (40, 12242297), (181, 2705480), (239, 2048920), (283, 1730360), (362, 1352740), (478, 1024460), (566, 865180), (724, 676370), (905, 541096), (956, 512230), (1132, 432590), (1195, 409784), (1415, 346072), (1448, 338185), (1810, 270548), (1912, 256115), (2264, 216295), (2390, 204892), (2830, 173036), (3620, 135274), (4780, 102446), (5660, 86518), (7240, 67637), (9560, 51223), (11320, 43259)]