1780623

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:133

約数の個数: 40

約数和(自身を含む): 3049200

約数和(自身を除く): 1268577

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 89, 117, 171, 247, 267, 351, 513, 741, 801, 1053, 1157, 1539, 1691, 2223, 2403, 3471, 5073, 6669, 7209, 10413, 15219, 20007, 21983, 31239, 45657, 65949, 93717, 136971, 197847, 593541, 1780623]

約数ペア:

[(1, 1780623), (3, 593541), (9, 197847), (13, 136971), (19, 93717), (27, 65949), (39, 45657), (57, 31239), (81, 21983), (89, 20007), (117, 15219), (171, 10413), (247, 7209), (267, 6669), (351, 5073), (513, 3471), (741, 2403), (801, 2223), (1053, 1691), (1157, 1539)]