25505980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67121}}^1$

素因数の和:67149

約数の個数: 24

約数和(自身を含む): 56382480

約数和(自身を除く): 30876500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 67121, 134242, 268484, 335605, 671210, 1275299, 1342420, 2550598, 5101196, 6376495, 12752990, 25505980]

約数ペア:

[(1, 25505980), (2, 12752990), (4, 6376495), (5, 5101196), (10, 2550598), (19, 1342420), (20, 1275299), (38, 671210), (76, 335605), (95, 268484), (190, 134242), (380, 67121)]