1997216390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{59779}}^1$

素因数の和:60056

約数の個数: 32

約数和(自身を含む): 3886656480

約数和(自身を除く): 1889440090

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 257, 514, 1285, 2570, 3341, 6682, 16705, 33410, 59779, 119558, 298895, 597790, 777127, 1554254, 3885635, 7771270, 15363203, 30726406, 76816015, 153632030, 199721639, 399443278, 998608195, 1997216390]

約数ペア:

[(1, 1997216390), (2, 998608195), (5, 399443278), (10, 199721639), (13, 153632030), (26, 76816015), (65, 30726406), (130, 15363203), (257, 7771270), (514, 3885635), (1285, 1554254), (2570, 777127), (3341, 597790), (6682, 298895), (16705, 119558), (33410, 59779)]