18026260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:736

約数の個数: 48

約数和(自身を含む): 43505280

約数和(自身を除く): 25479020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 331, 389, 662, 778, 1324, 1556, 1655, 1945, 2317, 2723, 3310, 3890, 4634, 5446, 6620, 7780, 9268, 10892, 11585, 13615, 23170, 27230, 46340, 54460, 128759, 257518, 515036, 643795, 901313, 1287590, 1802626, 2575180, 3605252, 4506565, 9013130, 18026260]

約数ペア:

[(1, 18026260), (2, 9013130), (4, 4506565), (5, 3605252), (7, 2575180), (10, 1802626), (14, 1287590), (20, 901313), (28, 643795), (35, 515036), (70, 257518), (140, 128759), (331, 54460), (389, 46340), (662, 27230), (778, 23170), (1324, 13615), (1556, 11585), (1655, 10892), (1945, 9268), (2317, 7780), (2723, 6620), (3310, 5446), (3890, 4634)]