213500000

素因数分解:

$2^5\times 5^6\times 7^1\times {\mathrm{61}}^1$

素因数の和:108

約数の個数: 168

約数和(自身を含む): 610304688

約数和(自身を除く): 396804688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 61, 70, 80, 100, 112, 122, 125, 140, 160, 175, 200, 224, 244, 250, 280, 305, 350, 400, 427, 488, 500, 560, 610, 625, 700, 800, 854, 875, 976, 1000, 1120, 1220, 1250, 1400, 1525, 1708, 1750, 1952, 2000, 2135, 2440, 2500, 2800, 3050, 3125, 3416, 3500, 4000, 4270, 4375, 4880, 5000, 5600, 6100, 6250, 6832, 7000, 7625, 8540, 8750, 9760, 10000, 10675, 12200, 12500, 13664, 14000, 15250, 15625, 17080, 17500, 20000, 21350, 21875, 24400, 25000, 28000, 30500, 31250, 34160, 35000, 38125, 42700, 43750, 48800, 50000, 53375, 61000, 62500, 68320, 70000, 76250, 85400, 87500, 100000, 106750, 109375, 122000, 125000, 140000, 152500, 170800, 175000, 190625, 213500, 218750, 244000, 250000, 266875, 305000, 341600, 350000, 381250, 427000, 437500, 500000, 533750, 610000, 700000, 762500, 854000, 875000, 953125, 1067500, 1220000, 1334375, 1525000, 1708000, 1750000, 1906250, 2135000, 2668750, 3050000, 3500000, 3812500, 4270000, 5337500, 6100000, 6671875, 7625000, 8540000, 10675000, 13343750, 15250000, 21350000, 26687500, 30500000, 42700000, 53375000, 106750000, 213500000]

約数ペア:

[(1, 213500000), (2, 106750000), (4, 53375000), (5, 42700000), (7, 30500000), (8, 26687500), (10, 21350000), (14, 15250000), (16, 13343750), (20, 10675000), (25, 8540000), (28, 7625000), (32, 6671875), (35, 6100000), (40, 5337500), (50, 4270000), (56, 3812500), (61, 3500000), (70, 3050000), (80, 2668750), (100, 2135000), (112, 1906250), (122, 1750000), (125, 1708000), (140, 1525000), (160, 1334375), (175, 1220000), (200, 1067500), (224, 953125), (244, 875000), (250, 854000), (280, 762500), (305, 700000), (350, 610000), (400, 533750), (427, 500000), (488, 437500), (500, 427000), (560, 381250), (610, 350000), (625, 341600), (700, 305000), (800, 266875), (854, 250000), (875, 244000), (976, 218750), (1000, 213500), (1120, 190625), (1220, 175000), (1250, 170800), (1400, 152500), (1525, 140000), (1708, 125000), (1750, 122000), (1952, 109375), (2000, 106750), (2135, 100000), (2440, 87500), (2500, 85400), (2800, 76250), (3050, 70000), (3125, 68320), (3416, 62500), (3500, 61000), (4000, 53375), (4270, 50000), (4375, 48800), (4880, 43750), (5000, 42700), (5600, 38125), (6100, 35000), (6250, 34160), (6832, 31250), (7000, 30500), (7625, 28000), (8540, 25000), (8750, 24400), (9760, 21875), (10000, 21350), (10675, 20000), (12200, 17500), (12500, 17080), (13664, 15625), (14000, 15250)]