12744800

素因数分解:

$2^5\times 5^2\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:288

約数の個数: 72

約数和(自身を含む): 31638600

約数和(自身を除く): 18893800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 89, 100, 160, 178, 179, 200, 356, 358, 400, 445, 712, 716, 800, 890, 895, 1424, 1432, 1780, 1790, 2225, 2848, 2864, 3560, 3580, 4450, 4475, 5728, 7120, 7160, 8900, 8950, 14240, 14320, 15931, 17800, 17900, 28640, 31862, 35600, 35800, 63724, 71200, 71600, 79655, 127448, 143200, 159310, 254896, 318620, 398275, 509792, 637240, 796550, 1274480, 1593100, 2548960, 3186200, 6372400, 12744800]

約数ペア:

[(1, 12744800), (2, 6372400), (4, 3186200), (5, 2548960), (8, 1593100), (10, 1274480), (16, 796550), (20, 637240), (25, 509792), (32, 398275), (40, 318620), (50, 254896), (80, 159310), (89, 143200), (100, 127448), (160, 79655), (178, 71600), (179, 71200), (200, 63724), (356, 35800), (358, 35600), (400, 31862), (445, 28640), (712, 17900), (716, 17800), (800, 15931), (890, 14320), (895, 14240), (1424, 8950), (1432, 8900), (1780, 7160), (1790, 7120), (2225, 5728), (2848, 4475), (2864, 4450), (3560, 3580)]