4971980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1471}}^1$

素因数の和:1506

約数の個数: 36

約数和(自身を含む): 11313792

約数和(自身を除く): 6341812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1471, 1690, 2942, 3380, 5884, 7355, 14710, 19123, 29420, 38246, 76492, 95615, 191230, 248599, 382460, 497198, 994396, 1242995, 2485990, 4971980]

約数ペア:

[(1, 4971980), (2, 2485990), (4, 1242995), (5, 994396), (10, 497198), (13, 382460), (20, 248599), (26, 191230), (52, 95615), (65, 76492), (130, 38246), (169, 29420), (260, 19123), (338, 14710), (676, 7355), (845, 5884), (1471, 3380), (1690, 2942)]