1644020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11743}}^1$

素因数の和:11759

約数の個数: 24

約数和(自身を含む): 3945984

約数和(自身を除く): 2301964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 11743, 23486, 46972, 58715, 82201, 117430, 164402, 234860, 328804, 411005, 822010, 1644020]

約数ペア:

[(1, 1644020), (2, 822010), (4, 411005), (5, 328804), (7, 234860), (10, 164402), (14, 117430), (20, 82201), (28, 58715), (35, 46972), (70, 23486), (140, 11743)]