81946060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4211}}^1$

素因数の和:4366

約数の個数: 48

約数和(自身を含む): 198132480

約数和(自身を除く): 116186420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4211, 4865, 8422, 9730, 16844, 19460, 21055, 29477, 42110, 58954, 84220, 117908, 147385, 294770, 585329, 589540, 1170658, 2341316, 2926645, 4097303, 5853290, 8194606, 11706580, 16389212, 20486515, 40973030, 81946060]

約数ペア:

[(1, 81946060), (2, 40973030), (4, 20486515), (5, 16389212), (7, 11706580), (10, 8194606), (14, 5853290), (20, 4097303), (28, 2926645), (35, 2341316), (70, 1170658), (139, 589540), (140, 585329), (278, 294770), (556, 147385), (695, 117908), (973, 84220), (1390, 58954), (1946, 42110), (2780, 29477), (3892, 21055), (4211, 19460), (4865, 16844), (8422, 9730)]