80339980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30203}}^1$

素因数の和:30238

約数の個数: 48

約数和(自身を含む): 202970880

約数和(自身を除く): 122630900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 30203, 60406, 120812, 151015, 211421, 302030, 422842, 573857, 604060, 845684, 1057105, 1147714, 2114210, 2295428, 2869285, 4016999, 4228420, 5738570, 8033998, 11477140, 16067996, 20084995, 40169990, 80339980]

約数ペア:

[(1, 80339980), (2, 40169990), (4, 20084995), (5, 16067996), (7, 11477140), (10, 8033998), (14, 5738570), (19, 4228420), (20, 4016999), (28, 2869285), (35, 2295428), (38, 2114210), (70, 1147714), (76, 1057105), (95, 845684), (133, 604060), (140, 573857), (190, 422842), (266, 302030), (380, 211421), (532, 151015), (665, 120812), (1330, 60406), (2660, 30203)]