2021983480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{17881}}^1$

素因数の和:18160

約数の個数: 64

約数和(自身を含む): 4982640480

約数和(自身を除く): 2960657000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 257, 440, 514, 1028, 1285, 2056, 2570, 2827, 5140, 5654, 10280, 11308, 14135, 17881, 22616, 28270, 35762, 56540, 71524, 89405, 113080, 143048, 178810, 196691, 357620, 393382, 715240, 786764, 983455, 1573528, 1966910, 3933820, 4595417, 7867640, 9190834, 18381668, 22977085, 36763336, 45954170, 50549587, 91908340, 101099174, 183816680, 202198348, 252747935, 404396696, 505495870, 1010991740, 2021983480]

約数ペア:

[(1, 2021983480), (2, 1010991740), (4, 505495870), (5, 404396696), (8, 252747935), (10, 202198348), (11, 183816680), (20, 101099174), (22, 91908340), (40, 50549587), (44, 45954170), (55, 36763336), (88, 22977085), (110, 18381668), (220, 9190834), (257, 7867640), (440, 4595417), (514, 3933820), (1028, 1966910), (1285, 1573528), (2056, 983455), (2570, 786764), (2827, 715240), (5140, 393382), (5654, 357620), (10280, 196691), (11308, 178810), (14135, 143048), (17881, 113080), (22616, 89405), (28270, 71524), (35762, 56540)]