1299440

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:489

約数の個数: 40

約数和(自身を含む): 3109920

約数和(自身を除く): 1810480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 439, 592, 740, 878, 1480, 1756, 2195, 2960, 3512, 4390, 7024, 8780, 16243, 17560, 32486, 35120, 64972, 81215, 129944, 162430, 259888, 324860, 649720, 1299440]

約数ペア:

[(1, 1299440), (2, 649720), (4, 324860), (5, 259888), (8, 162430), (10, 129944), (16, 81215), (20, 64972), (37, 35120), (40, 32486), (74, 17560), (80, 16243), (148, 8780), (185, 7024), (296, 4390), (370, 3512), (439, 2960), (592, 2195), (740, 1756), (878, 1480)]