25281520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28729}}^1$

素因数の和:28753

約数の個数: 40

約数和(自身を含む): 64125360

約数和(自身を除く): 38843840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 28729, 57458, 114916, 143645, 229832, 287290, 316019, 459664, 574580, 632038, 1149160, 1264076, 1580095, 2298320, 2528152, 3160190, 5056304, 6320380, 12640760, 25281520]

約数ペア:

[(1, 25281520), (2, 12640760), (4, 6320380), (5, 5056304), (8, 3160190), (10, 2528152), (11, 2298320), (16, 1580095), (20, 1264076), (22, 1149160), (40, 632038), (44, 574580), (55, 459664), (80, 316019), (88, 287290), (110, 229832), (176, 143645), (220, 114916), (440, 57458), (880, 28729)]