20400718

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{677}}^1$

素因数の和:772

約数の個数: 32

約数和(自身を含む): 35310240

約数和(自身を除く): 14909522

約数列:

[1, 2, 13, 19, 26, 38, 61, 122, 247, 494, 677, 793, 1159, 1354, 1586, 2318, 8801, 12863, 15067, 17602, 25726, 30134, 41297, 82594, 167219, 334438, 536861, 784643, 1073722, 1569286, 10200359, 20400718]

約数ペア:

[(1, 20400718), (2, 10200359), (13, 1569286), (19, 1073722), (26, 784643), (38, 536861), (61, 334438), (122, 167219), (247, 82594), (494, 41297), (677, 30134), (793, 25726), (1159, 17602), (1354, 15067), (1586, 12863), (2318, 8801)]