73120000

素因数分解:

$2^8\times 5^4\times {\mathrm{457}}^1$

素因数の和:493

約数の個数: 90

約数和(自身を含む): 182783678

約数和(自身を除く): 109663678

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 457, 500, 625, 640, 800, 914, 1000, 1250, 1280, 1600, 1828, 2000, 2285, 2500, 3200, 3656, 4000, 4570, 5000, 6400, 7312, 8000, 9140, 10000, 11425, 14624, 16000, 18280, 20000, 22850, 29248, 32000, 36560, 40000, 45700, 57125, 58496, 73120, 80000, 91400, 114250, 116992, 146240, 160000, 182800, 228500, 285625, 292480, 365600, 457000, 571250, 584960, 731200, 914000, 1142500, 1462400, 1828000, 2285000, 2924800, 3656000, 4570000, 7312000, 9140000, 14624000, 18280000, 36560000, 73120000]

約数ペア:

[(1, 73120000), (2, 36560000), (4, 18280000), (5, 14624000), (8, 9140000), (10, 7312000), (16, 4570000), (20, 3656000), (25, 2924800), (32, 2285000), (40, 1828000), (50, 1462400), (64, 1142500), (80, 914000), (100, 731200), (125, 584960), (128, 571250), (160, 457000), (200, 365600), (250, 292480), (256, 285625), (320, 228500), (400, 182800), (457, 160000), (500, 146240), (625, 116992), (640, 114250), (800, 91400), (914, 80000), (1000, 73120), (1250, 58496), (1280, 57125), (1600, 45700), (1828, 40000), (2000, 36560), (2285, 32000), (2500, 29248), (3200, 22850), (3656, 20000), (4000, 18280), (4570, 16000), (5000, 14624), (6400, 11425), (7312, 10000), (8000, 9140)]