2040920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 5417280

約数和(自身を除く): 3376360

約数列:

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

約数ペア:

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