4081840

素因数分解:

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

素因数の和:254

約数の個数: 80

約数和(自身を含む): 11195712

約数和(自身を除く): 7113872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 197, 259, 280, 296, 370, 394, 518, 560, 592, 740, 788, 985, 1036, 1295, 1379, 1480, 1576, 1970, 2072, 2590, 2758, 2960, 3152, 3940, 4144, 5180, 5516, 6895, 7289, 7880, 10360, 11032, 13790, 14578, 15760, 20720, 22064, 27580, 29156, 36445, 51023, 55160, 58312, 72890, 102046, 110320, 116624, 145780, 204092, 255115, 291560, 408184, 510230, 583120, 816368, 1020460, 2040920, 4081840]

約数ペア:

[(1, 4081840), (2, 2040920), (4, 1020460), (5, 816368), (7, 583120), (8, 510230), (10, 408184), (14, 291560), (16, 255115), (20, 204092), (28, 145780), (35, 116624), (37, 110320), (40, 102046), (56, 72890), (70, 58312), (74, 55160), (80, 51023), (112, 36445), (140, 29156), (148, 27580), (185, 22064), (197, 20720), (259, 15760), (280, 14578), (296, 13790), (370, 11032), (394, 10360), (518, 7880), (560, 7289), (592, 6895), (740, 5516), (788, 5180), (985, 4144), (1036, 3940), (1295, 3152), (1379, 2960), (1480, 2758), (1576, 2590), (1970, 2072)]