724378420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1906259}}^1$

素因数の和:1906287

約数の個数: 24

約数和(自身を含む): 1601258400

約数和(自身を除く): 876879980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1906259, 3812518, 7625036, 9531295, 19062590, 36218921, 38125180, 72437842, 144875684, 181094605, 362189210, 724378420]

約数ペア:

[(1, 724378420), (2, 362189210), (4, 181094605), (5, 144875684), (10, 72437842), (19, 38125180), (20, 36218921), (38, 19062590), (76, 9531295), (95, 7625036), (190, 3812518), (380, 1906259)]