128729600

素因数分解:

$2^9\times 5^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:230

約数の個数: 120

約数和(自身を含む): 325375380

約数和(自身を除く): 196645780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 89, 100, 113, 128, 160, 178, 200, 226, 256, 320, 356, 400, 445, 452, 512, 565, 640, 712, 800, 890, 904, 1130, 1280, 1424, 1600, 1780, 1808, 2225, 2260, 2560, 2825, 2848, 3200, 3560, 3616, 4450, 4520, 5650, 5696, 6400, 7120, 7232, 8900, 9040, 10057, 11300, 11392, 12800, 14240, 14464, 17800, 18080, 20114, 22600, 22784, 28480, 28928, 35600, 36160, 40228, 45200, 45568, 50285, 56960, 57856, 71200, 72320, 80456, 90400, 100570, 113920, 142400, 144640, 160912, 180800, 201140, 227840, 251425, 284800, 289280, 321824, 361600, 402280, 502850, 569600, 643648, 723200, 804560, 1005700, 1139200, 1287296, 1446400, 1609120, 2011400, 2574592, 3218240, 4022800, 5149184, 6436480, 8045600, 12872960, 16091200, 25745920, 32182400, 64364800, 128729600]

約数ペア:

[(1, 128729600), (2, 64364800), (4, 32182400), (5, 25745920), (8, 16091200), (10, 12872960), (16, 8045600), (20, 6436480), (25, 5149184), (32, 4022800), (40, 3218240), (50, 2574592), (64, 2011400), (80, 1609120), (89, 1446400), (100, 1287296), (113, 1139200), (128, 1005700), (160, 804560), (178, 723200), (200, 643648), (226, 569600), (256, 502850), (320, 402280), (356, 361600), (400, 321824), (445, 289280), (452, 284800), (512, 251425), (565, 227840), (640, 201140), (712, 180800), (800, 160912), (890, 144640), (904, 142400), (1130, 113920), (1280, 100570), (1424, 90400), (1600, 80456), (1780, 72320), (1808, 71200), (2225, 57856), (2260, 56960), (2560, 50285), (2825, 45568), (2848, 45200), (3200, 40228), (3560, 36160), (3616, 35600), (4450, 28928), (4520, 28480), (5650, 22784), (5696, 22600), (6400, 20114), (7120, 18080), (7232, 17800), (8900, 14464), (9040, 14240), (10057, 12800), (11300, 11392)]