19129180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{983}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 46287360

約数和(自身を除く): 27158180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 983, 1390, 1946, 1966, 2780, 3892, 3932, 4865, 4915, 6881, 9730, 9830, 13762, 19460, 19660, 27524, 34405, 68810, 136637, 137620, 273274, 546548, 683185, 956459, 1366370, 1912918, 2732740, 3825836, 4782295, 9564590, 19129180]

約数ペア:

[(1, 19129180), (2, 9564590), (4, 4782295), (5, 3825836), (7, 2732740), (10, 1912918), (14, 1366370), (20, 956459), (28, 683185), (35, 546548), (70, 273274), (139, 137620), (140, 136637), (278, 68810), (556, 34405), (695, 27524), (973, 19660), (983, 19460), (1390, 13762), (1946, 9830), (1966, 9730), (2780, 6881), (3892, 4915), (3932, 4865)]