71425180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1861}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 159536160

約数和(自身を除く): 88110980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 505, 1010, 1861, 1919, 2020, 3722, 3838, 7444, 7676, 9305, 9595, 18610, 19190, 35359, 37220, 38380, 70718, 141436, 176795, 187961, 353590, 375922, 707180, 751844, 939805, 1879610, 3571259, 3759220, 7142518, 14285036, 17856295, 35712590, 71425180]

約数ペア:

[(1, 71425180), (2, 35712590), (4, 17856295), (5, 14285036), (10, 7142518), (19, 3759220), (20, 3571259), (38, 1879610), (76, 939805), (95, 751844), (101, 707180), (190, 375922), (202, 353590), (380, 187961), (404, 176795), (505, 141436), (1010, 70718), (1861, 38380), (1919, 37220), (2020, 35359), (3722, 19190), (3838, 18610), (7444, 9595), (7676, 9305)]