1984480000

素因数分解:

$2^8\times 5^4\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:272

約数の個数: 180

約数和(自身を含む): 5044510240

約数和(自身を除く): 3060030240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 125, 128, 157, 158, 160, 200, 250, 256, 314, 316, 320, 395, 400, 500, 625, 628, 632, 640, 785, 790, 800, 1000, 1250, 1256, 1264, 1280, 1570, 1580, 1600, 1975, 2000, 2500, 2512, 2528, 3140, 3160, 3200, 3925, 3950, 4000, 5000, 5024, 5056, 6280, 6320, 6400, 7850, 7900, 8000, 9875, 10000, 10048, 10112, 12403, 12560, 12640, 15700, 15800, 16000, 19625, 19750, 20000, 20096, 20224, 24806, 25120, 25280, 31400, 31600, 32000, 39250, 39500, 40000, 40192, 49375, 49612, 50240, 50560, 62015, 62800, 63200, 78500, 79000, 80000, 98125, 98750, 99224, 100480, 101120, 124030, 125600, 126400, 157000, 158000, 160000, 196250, 197500, 198448, 200960, 248060, 251200, 252800, 310075, 314000, 316000, 392500, 395000, 396896, 496120, 502400, 505600, 620150, 628000, 632000, 785000, 790000, 793792, 992240, 1004800, 1240300, 1256000, 1264000, 1550375, 1570000, 1580000, 1587584, 1984480, 2480600, 2512000, 2528000, 3100750, 3140000, 3160000, 3175168, 3968960, 4961200, 5024000, 6201500, 6280000, 6320000, 7751875, 7937920, 9922400, 12403000, 12560000, 12640000, 15503750, 15875840, 19844800, 24806000, 25120000, 31007500, 39689600, 49612000, 62015000, 79379200, 99224000, 124030000, 198448000, 248060000, 396896000, 496120000, 992240000, 1984480000]

約数ペア:

[(1, 1984480000), (2, 992240000), (4, 496120000), (5, 396896000), (8, 248060000), (10, 198448000), (16, 124030000), (20, 99224000), (25, 79379200), (32, 62015000), (40, 49612000), (50, 39689600), (64, 31007500), (79, 25120000), (80, 24806000), (100, 19844800), (125, 15875840), (128, 15503750), (157, 12640000), (158, 12560000), (160, 12403000), (200, 9922400), (250, 7937920), (256, 7751875), (314, 6320000), (316, 6280000), (320, 6201500), (395, 5024000), (400, 4961200), (500, 3968960), (625, 3175168), (628, 3160000), (632, 3140000), (640, 3100750), (785, 2528000), (790, 2512000), (800, 2480600), (1000, 1984480), (1250, 1587584), (1256, 1580000), (1264, 1570000), (1280, 1550375), (1570, 1264000), (1580, 1256000), (1600, 1240300), (1975, 1004800), (2000, 992240), (2500, 793792), (2512, 790000), (2528, 785000), (3140, 632000), (3160, 628000), (3200, 620150), (3925, 505600), (3950, 502400), (4000, 496120), (5000, 396896), (5024, 395000), (5056, 392500), (6280, 316000), (6320, 314000), (6400, 310075), (7850, 252800), (7900, 251200), (8000, 248060), (9875, 200960), (10000, 198448), (10048, 197500), (10112, 196250), (12403, 160000), (12560, 158000), (12640, 157000), (15700, 126400), (15800, 125600), (16000, 124030), (19625, 101120), (19750, 100480), (20000, 99224), (20096, 98750), (20224, 98125), (24806, 80000), (25120, 79000), (25280, 78500), (31400, 63200), (31600, 62800), (32000, 62015), (39250, 50560), (39500, 50240), (40000, 49612), (40192, 49375)]