20123866915

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{19919}}^1$

素因数の和:20131

約数の個数: 32

約数和(自身を含む): 25579192320

約数和(自身を除く): 5455325405

約数列:

[1, 5, 37, 43, 127, 185, 215, 635, 1591, 4699, 5461, 7955, 19919, 23495, 27305, 99595, 202057, 737003, 856517, 1010285, 2529713, 3685015, 4282585, 12648565, 31691129, 93599381, 108777659, 158455645, 467996905, 543888295, 4024773383, 20123866915]

約数ペア:

[(1, 20123866915), (5, 4024773383), (37, 543888295), (43, 467996905), (127, 158455645), (185, 108777659), (215, 93599381), (635, 31691129), (1591, 12648565), (4699, 4282585), (5461, 3685015), (7955, 2529713), (19919, 1010285), (23495, 856517), (27305, 737003), (99595, 202057)]