2841520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3229}}^1$

素因数の和:3253

約数の個数: 40

約数和(自身を含む): 7209360

約数和(自身を除く): 4367840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 3229, 6458, 12916, 16145, 25832, 32290, 35519, 51664, 64580, 71038, 129160, 142076, 177595, 258320, 284152, 355190, 568304, 710380, 1420760, 2841520]

約数ペア:

[(1, 2841520), (2, 1420760), (4, 710380), (5, 568304), (8, 355190), (10, 284152), (11, 258320), (16, 177595), (20, 142076), (22, 129160), (40, 71038), (44, 64580), (55, 51664), (80, 35519), (88, 32290), (110, 25832), (176, 16145), (220, 12916), (440, 6458), (880, 3229)]