42145420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{110909}}^1$

素因数の和:110937

約数の個数: 24

約数和(自身を含む): 93164400

約数和(自身を除く): 51018980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 110909, 221818, 443636, 554545, 1109090, 2107271, 2218180, 4214542, 8429084, 10536355, 21072710, 42145420]

約数ペア:

[(1, 42145420), (2, 21072710), (4, 10536355), (5, 8429084), (10, 4214542), (19, 2218180), (20, 2107271), (38, 1109090), (76, 554545), (95, 443636), (190, 221818), (380, 110909)]