20164501775

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{6665951}}^1$

素因数の和:6665983

約数の個数: 18

約数和(自身を含む): 27483720096

約数和(自身を除く): 7319218321

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 6665951, 33329755, 73325461, 166648775, 366627305, 806580071, 1833136525, 4032900355, 20164501775]

約数ペア:

[(1, 20164501775), (5, 4032900355), (11, 1833136525), (25, 806580071), (55, 366627305), (121, 166648775), (275, 73325461), (605, 33329755), (3025, 6665951)]