28932880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8821}}^1$

素因数の和:8875

約数の個数: 40

約数和(自身を含む): 68917464

約数和(自身を除く): 39984584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8821, 17642, 35284, 44105, 70568, 88210, 141136, 176420, 352840, 361661, 705680, 723322, 1446644, 1808305, 2893288, 3616610, 5786576, 7233220, 14466440, 28932880]

約数ペア:

[(1, 28932880), (2, 14466440), (4, 7233220), (5, 5786576), (8, 3616610), (10, 2893288), (16, 1808305), (20, 1446644), (40, 723322), (41, 705680), (80, 361661), (82, 352840), (164, 176420), (205, 141136), (328, 88210), (410, 70568), (656, 44105), (820, 35284), (1640, 17642), (3280, 8821)]