405140990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2132321}}^1$

素因数の和:2132347

約数の個数: 16

約数和(自身を含む): 767635920

約数和(自身を除く): 362494930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 2132321, 4264642, 10661605, 21323210, 40514099, 81028198, 202570495, 405140990]

約数ペア:

[(1, 405140990), (2, 202570495), (5, 81028198), (10, 40514099), (19, 21323210), (38, 10661605), (95, 4264642), (190, 2132321)]