2006807480

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{6883}}^1$

素因数の和:7128

約数の個数: 64

約数和(自身を含む): 4661569440

約数和(自身を除く): 2654761960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 197, 296, 370, 394, 740, 788, 985, 1480, 1576, 1970, 3940, 6883, 7289, 7880, 13766, 14578, 27532, 29156, 34415, 36445, 55064, 58312, 68830, 72890, 137660, 145780, 254671, 275320, 291560, 509342, 1018684, 1273355, 1355951, 2037368, 2546710, 2711902, 5093420, 5423804, 6779755, 10186840, 10847608, 13559510, 27119020, 50170187, 54238040, 100340374, 200680748, 250850935, 401361496, 501701870, 1003403740, 2006807480]

約数ペア:

[(1, 2006807480), (2, 1003403740), (4, 501701870), (5, 401361496), (8, 250850935), (10, 200680748), (20, 100340374), (37, 54238040), (40, 50170187), (74, 27119020), (148, 13559510), (185, 10847608), (197, 10186840), (296, 6779755), (370, 5423804), (394, 5093420), (740, 2711902), (788, 2546710), (985, 2037368), (1480, 1355951), (1576, 1273355), (1970, 1018684), (3940, 509342), (6883, 291560), (7289, 275320), (7880, 254671), (13766, 145780), (14578, 137660), (27532, 72890), (29156, 68830), (34415, 58312), (36445, 55064)]