8002420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21059}}^1$

素因数の和:21087

約数の個数: 24

約数和(自身を含む): 17690400

約数和(自身を除く): 9687980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 21059, 42118, 84236, 105295, 210590, 400121, 421180, 800242, 1600484, 2000605, 4001210, 8002420]

約数ペア:

[(1, 8002420), (2, 4001210), (4, 2000605), (5, 1600484), (10, 800242), (19, 421180), (20, 400121), (38, 210590), (76, 105295), (95, 84236), (190, 42118), (380, 21059)]