2015201920

素因数分解:

$2^7\times 5^1\times {\mathrm{211}}^1\times {\mathrm{14923}}^1$

素因数の和:15153

約数の個数: 64

約数和(自身を含む): 4840748640

約数和(自身を除く): 2825546720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 320, 422, 640, 844, 1055, 1688, 2110, 3376, 4220, 6752, 8440, 13504, 14923, 16880, 27008, 29846, 33760, 59692, 67520, 74615, 119384, 135040, 149230, 238768, 298460, 477536, 596920, 955072, 1193840, 1910144, 2387680, 3148753, 4775360, 6297506, 9550720, 12595012, 15743765, 25190024, 31487530, 50380048, 62975060, 100760096, 125950120, 201520192, 251900240, 403040384, 503800480, 1007600960, 2015201920]

約数ペア:

[(1, 2015201920), (2, 1007600960), (4, 503800480), (5, 403040384), (8, 251900240), (10, 201520192), (16, 125950120), (20, 100760096), (32, 62975060), (40, 50380048), (64, 31487530), (80, 25190024), (128, 15743765), (160, 12595012), (211, 9550720), (320, 6297506), (422, 4775360), (640, 3148753), (844, 2387680), (1055, 1910144), (1688, 1193840), (2110, 955072), (3376, 596920), (4220, 477536), (6752, 298460), (8440, 238768), (13504, 149230), (14923, 135040), (16880, 119384), (27008, 74615), (29846, 67520), (33760, 59692)]