139998440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{66037}}^1$

素因数の和:66101

約数の個数: 32

約数和(自身を含む): 320944680

約数和(自身を除く): 180946240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 66037, 132074, 264148, 330185, 528296, 660370, 1320740, 2641480, 3499961, 6999922, 13999844, 17499805, 27999688, 34999610, 69999220, 139998440]

約数ペア:

[(1, 139998440), (2, 69999220), (4, 34999610), (5, 27999688), (8, 17499805), (10, 13999844), (20, 6999922), (40, 3499961), (53, 2641480), (106, 1320740), (212, 660370), (265, 528296), (424, 330185), (530, 264148), (1060, 132074), (2120, 66037)]