2145980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1759}}^1$

素因数の和:1829

約数の個数: 24

約数和(自身を含む): 4583040

約数和(自身を除く): 2437060

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1759, 3518, 7036, 8795, 17590, 35180, 107299, 214598, 429196, 536495, 1072990, 2145980]

約数ペア:

[(1, 2145980), (2, 1072990), (4, 536495), (5, 429196), (10, 214598), (20, 107299), (61, 35180), (122, 17590), (244, 8795), (305, 7036), (610, 3518), (1220, 1759)]