18054920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34721}}^1$

素因数の和:34745

約数の個数: 32

約数和(自身を含む): 43749720

約数和(自身を除く): 25694800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 34721, 69442, 138884, 173605, 277768, 347210, 451373, 694420, 902746, 1388840, 1805492, 2256865, 3610984, 4513730, 9027460, 18054920]

約数ペア:

[(1, 18054920), (2, 9027460), (4, 4513730), (5, 3610984), (8, 2256865), (10, 1805492), (13, 1388840), (20, 902746), (26, 694420), (40, 451373), (52, 347210), (65, 277768), (104, 173605), (130, 138884), (260, 69442), (520, 34721)]