783920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:293

約数の個数: 40

約数和(自身を含む): 1874880

約数和(自身を除く): 1090960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 239, 328, 410, 478, 656, 820, 956, 1195, 1640, 1912, 2390, 3280, 3824, 4780, 9560, 9799, 19120, 19598, 39196, 48995, 78392, 97990, 156784, 195980, 391960, 783920]

約数ペア:

[(1, 783920), (2, 391960), (4, 195980), (5, 156784), (8, 97990), (10, 78392), (16, 48995), (20, 39196), (40, 19598), (41, 19120), (80, 9799), (82, 9560), (164, 4780), (205, 3824), (239, 3280), (328, 2390), (410, 1912), (478, 1640), (656, 1195), (820, 956)]