13872005

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 20044800

約数和(自身を除く): 6172795

約数列:

[1, 5, 7, 29, 35, 79, 145, 173, 203, 395, 553, 865, 1015, 1211, 2291, 2765, 5017, 6055, 11455, 13667, 16037, 25085, 35119, 68335, 80185, 95669, 175595, 396343, 478345, 1981715, 2774401, 13872005]

約数ペア:

[(1, 13872005), (5, 2774401), (7, 1981715), (29, 478345), (35, 396343), (79, 175595), (145, 95669), (173, 80185), (203, 68335), (395, 35119), (553, 25085), (865, 16037), (1015, 13667), (1211, 11455), (2291, 6055), (2765, 5017)]