199919425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{4339}}^1$

素因数の和:4465

約数の個数: 24

約数和(自身を含む): 263698400

約数和(自身を除く): 63778975

約数列:

[1, 5, 19, 25, 95, 97, 475, 485, 1843, 2425, 4339, 9215, 21695, 46075, 82441, 108475, 412205, 420883, 2061025, 2104415, 7996777, 10522075, 39983885, 199919425]

約数ペア:

[(1, 199919425), (5, 39983885), (19, 10522075), (25, 7996777), (95, 2104415), (97, 2061025), (475, 420883), (485, 412205), (1843, 108475), (2425, 82441), (4339, 46075), (9215, 21695)]