13449680

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1889}}^1$

素因数の和:1991

約数の個数: 40

約数和(自身を含む): 31638600

約数和(自身を除く): 18188920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 1889, 3560, 3778, 7120, 7556, 9445, 15112, 18890, 30224, 37780, 75560, 151120, 168121, 336242, 672484, 840605, 1344968, 1681210, 2689936, 3362420, 6724840, 13449680]

約数ペア:

[(1, 13449680), (2, 6724840), (4, 3362420), (5, 2689936), (8, 1681210), (10, 1344968), (16, 840605), (20, 672484), (40, 336242), (80, 168121), (89, 151120), (178, 75560), (356, 37780), (445, 30224), (712, 18890), (890, 15112), (1424, 9445), (1780, 7556), (1889, 7120), (3560, 3778)]