78991940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{136193}}^1$

素因数の和:136231

約数の個数: 24

約数和(自身を含む): 171604440

約数和(自身を除く): 92612500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 136193, 272386, 544772, 680965, 1361930, 2723860, 3949597, 7899194, 15798388, 19747985, 39495970, 78991940]

約数ペア:

[(1, 78991940), (2, 39495970), (4, 19747985), (5, 15798388), (10, 7899194), (20, 3949597), (29, 2723860), (58, 1361930), (116, 680965), (145, 544772), (290, 272386), (580, 136193)]