2008385840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{809833}}^1$

素因数の和:809877

約数の個数: 40

約数和(自身を含む): 4820131968

約数和(自身を除く): 2811746128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 809833, 1619666, 3239332, 4049165, 6478664, 8098330, 12957328, 16196660, 25104823, 32393320, 50209646, 64786640, 100419292, 125524115, 200838584, 251048230, 401677168, 502096460, 1004192920, 2008385840]

約数ペア:

[(1, 2008385840), (2, 1004192920), (4, 502096460), (5, 401677168), (8, 251048230), (10, 200838584), (16, 125524115), (20, 100419292), (31, 64786640), (40, 50209646), (62, 32393320), (80, 25104823), (124, 16196660), (155, 12957328), (248, 8098330), (310, 6478664), (496, 4049165), (620, 3239332), (1240, 1619666), (2480, 809833)]