19984541500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{47189}}^1$

素因数の和:47237

約数の個数: 144

約数和(自身を含む): 54829494720

約数和(自身を除く): 34844953220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 121, 125, 140, 154, 175, 220, 242, 250, 275, 308, 350, 385, 484, 500, 550, 605, 700, 770, 847, 875, 1100, 1210, 1375, 1540, 1694, 1750, 1925, 2420, 2750, 3025, 3388, 3500, 3850, 4235, 5500, 6050, 7700, 8470, 9625, 12100, 15125, 16940, 19250, 21175, 30250, 38500, 42350, 47189, 60500, 84700, 94378, 105875, 188756, 211750, 235945, 330323, 423500, 471890, 519079, 660646, 943780, 1038158, 1179725, 1321292, 1651615, 2076316, 2359450, 2595395, 3303230, 3633553, 4718900, 5190790, 5709869, 5898625, 6606460, 7267106, 8258075, 10381580, 11419738, 11797250, 12976975, 14534212, 16516150, 18167765, 22839476, 23594500, 25953950, 28549345, 33032300, 36335530, 39969083, 41290375, 51907900, 57098690, 64884875, 72671060, 79938166, 82580750, 90838825, 114197380, 129769750, 142746725, 159876332, 165161500, 181677650, 199845415, 259539500, 285493450, 363355300, 399690830, 454194125, 570986900, 713733625, 799381660, 908388250, 999227075, 1427467250, 1816776500, 1998454150, 2854934500, 3996908300, 4996135375, 9992270750, 19984541500]

約数ペア:

[(1, 19984541500), (2, 9992270750), (4, 4996135375), (5, 3996908300), (7, 2854934500), (10, 1998454150), (11, 1816776500), (14, 1427467250), (20, 999227075), (22, 908388250), (25, 799381660), (28, 713733625), (35, 570986900), (44, 454194125), (50, 399690830), (55, 363355300), (70, 285493450), (77, 259539500), (100, 199845415), (110, 181677650), (121, 165161500), (125, 159876332), (140, 142746725), (154, 129769750), (175, 114197380), (220, 90838825), (242, 82580750), (250, 79938166), (275, 72671060), (308, 64884875), (350, 57098690), (385, 51907900), (484, 41290375), (500, 39969083), (550, 36335530), (605, 33032300), (700, 28549345), (770, 25953950), (847, 23594500), (875, 22839476), (1100, 18167765), (1210, 16516150), (1375, 14534212), (1540, 12976975), (1694, 11797250), (1750, 11419738), (1925, 10381580), (2420, 8258075), (2750, 7267106), (3025, 6606460), (3388, 5898625), (3500, 5709869), (3850, 5190790), (4235, 4718900), (5500, 3633553), (6050, 3303230), (7700, 2595395), (8470, 2359450), (9625, 2076316), (12100, 1651615), (15125, 1321292), (16940, 1179725), (19250, 1038158), (21175, 943780), (30250, 660646), (38500, 519079), (42350, 471890), (47189, 423500), (60500, 330323), (84700, 235945), (94378, 211750), (105875, 188756)]