289356800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:246

約数の個数: 132

約数和(自身を含む): 731024640

約数和(自身を除く): 441667840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 89, 100, 127, 128, 160, 178, 200, 254, 256, 320, 356, 400, 445, 508, 512, 635, 640, 712, 800, 890, 1016, 1024, 1270, 1280, 1424, 1600, 1780, 2032, 2225, 2540, 2560, 2848, 3175, 3200, 3560, 4064, 4450, 5080, 5120, 5696, 6350, 6400, 7120, 8128, 8900, 10160, 11303, 11392, 12700, 12800, 14240, 16256, 17800, 20320, 22606, 22784, 25400, 25600, 28480, 32512, 35600, 40640, 45212, 45568, 50800, 56515, 56960, 65024, 71200, 81280, 90424, 91136, 101600, 113030, 113920, 130048, 142400, 162560, 180848, 203200, 226060, 227840, 282575, 284800, 325120, 361696, 406400, 452120, 455680, 565150, 569600, 650240, 723392, 812800, 904240, 1130300, 1139200, 1446784, 1625600, 1808480, 2260600, 2278400, 2893568, 3251200, 3616960, 4521200, 5787136, 7233920, 9042400, 11574272, 14467840, 18084800, 28935680, 36169600, 57871360, 72339200, 144678400, 289356800]

約数ペア:

[(1, 289356800), (2, 144678400), (4, 72339200), (5, 57871360), (8, 36169600), (10, 28935680), (16, 18084800), (20, 14467840), (25, 11574272), (32, 9042400), (40, 7233920), (50, 5787136), (64, 4521200), (80, 3616960), (89, 3251200), (100, 2893568), (127, 2278400), (128, 2260600), (160, 1808480), (178, 1625600), (200, 1446784), (254, 1139200), (256, 1130300), (320, 904240), (356, 812800), (400, 723392), (445, 650240), (508, 569600), (512, 565150), (635, 455680), (640, 452120), (712, 406400), (800, 361696), (890, 325120), (1016, 284800), (1024, 282575), (1270, 227840), (1280, 226060), (1424, 203200), (1600, 180848), (1780, 162560), (2032, 142400), (2225, 130048), (2540, 113920), (2560, 113030), (2848, 101600), (3175, 91136), (3200, 90424), (3560, 81280), (4064, 71200), (4450, 65024), (5080, 56960), (5120, 56515), (5696, 50800), (6350, 45568), (6400, 45212), (7120, 40640), (8128, 35600), (8900, 32512), (10160, 28480), (11303, 25600), (11392, 25400), (12700, 22784), (12800, 22606), (14240, 20320), (16256, 17800)]