1986640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1307}}^1$

素因数の和:1339

約数の個数: 40

約数和(自身を含む): 4865760

約数和(自身を除く): 2879120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1307, 1520, 2614, 5228, 6535, 10456, 13070, 20912, 24833, 26140, 49666, 52280, 99332, 104560, 124165, 198664, 248330, 397328, 496660, 993320, 1986640]

約数ペア:

[(1, 1986640), (2, 993320), (4, 496660), (5, 397328), (8, 248330), (10, 198664), (16, 124165), (19, 104560), (20, 99332), (38, 52280), (40, 49666), (76, 26140), (80, 24833), (95, 20912), (152, 13070), (190, 10456), (304, 6535), (380, 5228), (760, 2614), (1307, 1520)]