20212197880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{3469}}^1\times {\mathrm{20809}}^1$

素因数の和:24296

約数の個数: 64

約数和(自身を含む): 51991704000

約数和(自身を除く): 31779506120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 3469, 6938, 13876, 17345, 20809, 24283, 27752, 34690, 41618, 48566, 69380, 83236, 97132, 104045, 121415, 138760, 145663, 166472, 194264, 208090, 242830, 291326, 416180, 485660, 582652, 728315, 832360, 971320, 1165304, 1456630, 2913260, 5826520, 72186421, 144372842, 288745684, 360932105, 505304947, 577491368, 721864210, 1010609894, 1443728420, 2021219788, 2526524735, 2887456840, 4042439576, 5053049470, 10106098940, 20212197880]

約数ペア:

[(1, 20212197880), (2, 10106098940), (4, 5053049470), (5, 4042439576), (7, 2887456840), (8, 2526524735), (10, 2021219788), (14, 1443728420), (20, 1010609894), (28, 721864210), (35, 577491368), (40, 505304947), (56, 360932105), (70, 288745684), (140, 144372842), (280, 72186421), (3469, 5826520), (6938, 2913260), (13876, 1456630), (17345, 1165304), (20809, 971320), (24283, 832360), (27752, 728315), (34690, 582652), (41618, 485660), (48566, 416180), (69380, 291326), (83236, 242830), (97132, 208090), (104045, 194264), (121415, 166472), (138760, 145663)]