80163760

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16427}}^1$

素因数の和:16501

約数の個数: 40

約数和(自身を含む): 189447696

約数和(自身を除く): 109283936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 16427, 32854, 65708, 82135, 131416, 164270, 262832, 328540, 657080, 1002047, 1314160, 2004094, 4008188, 5010235, 8016376, 10020470, 16032752, 20040940, 40081880, 80163760]

約数ペア:

[(1, 80163760), (2, 40081880), (4, 20040940), (5, 16032752), (8, 10020470), (10, 8016376), (16, 5010235), (20, 4008188), (40, 2004094), (61, 1314160), (80, 1002047), (122, 657080), (244, 328540), (305, 262832), (488, 164270), (610, 131416), (976, 82135), (1220, 65708), (2440, 32854), (4880, 16427)]