2891240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6571}}^1$

素因数の和:6593

約数の個数: 32

約数和(自身を含む): 7097760

約数和(自身を除く): 4206520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 6571, 13142, 26284, 32855, 52568, 65710, 72281, 131420, 144562, 262840, 289124, 361405, 578248, 722810, 1445620, 2891240]

約数ペア:

[(1, 2891240), (2, 1445620), (4, 722810), (5, 578248), (8, 361405), (10, 289124), (11, 262840), (20, 144562), (22, 131420), (40, 72281), (44, 65710), (55, 52568), (88, 32855), (110, 26284), (220, 13142), (440, 6571)]