78406228

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{383}}^1\times {\mathrm{839}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 139991040

約数和(自身を除く): 61584812

約数列:

[1, 2, 4, 61, 122, 244, 383, 766, 839, 1532, 1678, 3356, 23363, 46726, 51179, 93452, 102358, 204716, 321337, 642674, 1285348, 19601557, 39203114, 78406228]

約数ペア:

[(1, 78406228), (2, 39203114), (4, 19601557), (61, 1285348), (122, 642674), (244, 321337), (383, 204716), (766, 102358), (839, 93452), (1532, 51179), (1678, 46726), (3356, 23363)]