61377980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{161521}}^1$

素因数の和:161549

約数の個数: 24

約数和(自身を含む): 135678480

約数和(自身を除く): 74300500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 161521, 323042, 646084, 807605, 1615210, 3068899, 3230420, 6137798, 12275596, 15344495, 30688990, 61377980]

約数ペア:

[(1, 61377980), (2, 30688990), (4, 15344495), (5, 12275596), (10, 6137798), (19, 3230420), (20, 3068899), (38, 1615210), (76, 807605), (95, 646084), (190, 323042), (380, 161521)]