638851135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{4523}}^1$

素因数の和:4635

約数の個数: 32

約数和(自身を含む): 861876288

約数和(自身を除く): 223025153

約数列:

[1, 5, 13, 41, 53, 65, 205, 265, 533, 689, 2173, 2665, 3445, 4523, 10865, 22615, 28249, 58799, 141245, 185443, 239719, 293995, 927215, 1198595, 2410759, 3116347, 9828479, 12053795, 15581735, 49142395, 127770227, 638851135]

約数ペア:

[(1, 638851135), (5, 127770227), (13, 49142395), (41, 15581735), (53, 12053795), (65, 9828479), (205, 3116347), (265, 2410759), (533, 1198595), (689, 927215), (2173, 293995), (2665, 239719), (3445, 185443), (4523, 141245), (10865, 58799), (22615, 28249)]