201403880

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{5527}}^1$

素因数の和:6449

約数の個数: 32

約数和(自身を含む): 453738240

約数和(自身を除く): 252334360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1822, 3644, 4555, 5527, 7288, 9110, 11054, 18220, 22108, 27635, 36440, 44216, 55270, 110540, 221080, 5035097, 10070194, 20140388, 25175485, 40280776, 50350970, 100701940, 201403880]

約数ペア:

[(1, 201403880), (2, 100701940), (4, 50350970), (5, 40280776), (8, 25175485), (10, 20140388), (20, 10070194), (40, 5035097), (911, 221080), (1822, 110540), (3644, 55270), (4555, 44216), (5527, 36440), (7288, 27635), (9110, 22108), (11054, 18220)]