64970975

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{313}}^1$

素因数の和:384

約数の個数: 36

約数和(自身を含む): 89007696

約数和(自身を除く): 24036721

約数列:

[1, 5, 19, 23, 25, 95, 115, 313, 361, 437, 475, 575, 1565, 1805, 2185, 5947, 7199, 7825, 8303, 9025, 10925, 29735, 35995, 41515, 112993, 136781, 148675, 179975, 207575, 564965, 683905, 2598839, 2824825, 3419525, 12994195, 64970975]

約数ペア:

[(1, 64970975), (5, 12994195), (19, 3419525), (23, 2824825), (25, 2598839), (95, 683905), (115, 564965), (313, 207575), (361, 179975), (437, 148675), (475, 136781), (575, 112993), (1565, 41515), (1805, 35995), (2185, 29735), (5947, 10925), (7199, 9025), (7825, 8303)]