20719790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{22769}}^1$

素因数の和:22796

約数の個数: 32

約数和(自身を含む): 45904320

約数和(自身を除く): 25184530

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 22769, 45538, 113845, 159383, 227690, 295997, 318766, 591994, 796915, 1479985, 1593830, 2071979, 2959970, 4143958, 10359895, 20719790]

約数ペア:

[(1, 20719790), (2, 10359895), (5, 4143958), (7, 2959970), (10, 2071979), (13, 1593830), (14, 1479985), (26, 796915), (35, 591994), (65, 318766), (70, 295997), (91, 227690), (130, 159383), (182, 113845), (455, 45538), (910, 22769)]