20409200

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:259

約数の個数: 120

約数和(自身を含む): 57844512

約数和(自身を除く): 37435312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 37, 40, 50, 56, 70, 74, 80, 100, 112, 140, 148, 175, 185, 197, 200, 259, 280, 296, 350, 370, 394, 400, 518, 560, 592, 700, 740, 788, 925, 985, 1036, 1295, 1379, 1400, 1480, 1576, 1850, 1970, 2072, 2590, 2758, 2800, 2960, 3152, 3700, 3940, 4144, 4925, 5180, 5516, 6475, 6895, 7289, 7400, 7880, 9850, 10360, 11032, 12950, 13790, 14578, 14800, 15760, 19700, 20720, 22064, 25900, 27580, 29156, 34475, 36445, 39400, 51023, 51800, 55160, 58312, 68950, 72890, 78800, 102046, 103600, 110320, 116624, 137900, 145780, 182225, 204092, 255115, 275800, 291560, 364450, 408184, 510230, 551600, 583120, 728900, 816368, 1020460, 1275575, 1457800, 2040920, 2551150, 2915600, 4081840, 5102300, 10204600, 20409200]

約数ペア:

[(1, 20409200), (2, 10204600), (4, 5102300), (5, 4081840), (7, 2915600), (8, 2551150), (10, 2040920), (14, 1457800), (16, 1275575), (20, 1020460), (25, 816368), (28, 728900), (35, 583120), (37, 551600), (40, 510230), (50, 408184), (56, 364450), (70, 291560), (74, 275800), (80, 255115), (100, 204092), (112, 182225), (140, 145780), (148, 137900), (175, 116624), (185, 110320), (197, 103600), (200, 102046), (259, 78800), (280, 72890), (296, 68950), (350, 58312), (370, 55160), (394, 51800), (400, 51023), (518, 39400), (560, 36445), (592, 34475), (700, 29156), (740, 27580), (788, 25900), (925, 22064), (985, 20720), (1036, 19700), (1295, 15760), (1379, 14800), (1400, 14578), (1480, 13790), (1576, 12950), (1850, 11032), (1970, 10360), (2072, 9850), (2590, 7880), (2758, 7400), (2800, 7289), (2960, 6895), (3152, 6475), (3700, 5516), (3940, 5180), (4144, 4925)]