19105940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{136471}}^1$

素因数の和:136487

約数の個数: 24

約数和(自身を含む): 45854592

約数和(自身を除く): 26748652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 136471, 272942, 545884, 682355, 955297, 1364710, 1910594, 2729420, 3821188, 4776485, 9552970, 19105940]

約数ペア:

[(1, 19105940), (2, 9552970), (4, 4776485), (5, 3821188), (7, 2729420), (10, 1910594), (14, 1364710), (20, 955297), (28, 682355), (35, 545884), (70, 272942), (140, 136471)]