253307120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{287849}}^1$

素因数の和:287873

約数の個数: 40

約数和(自身を含む): 642481200

約数和(自身を除く): 389174080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 287849, 575698, 1151396, 1439245, 2302792, 2878490, 3166339, 4605584, 5756980, 6332678, 11513960, 12665356, 15831695, 23027920, 25330712, 31663390, 50661424, 63326780, 126653560, 253307120]

約数ペア:

[(1, 253307120), (2, 126653560), (4, 63326780), (5, 50661424), (8, 31663390), (10, 25330712), (11, 23027920), (16, 15831695), (20, 12665356), (22, 11513960), (40, 6332678), (44, 5756980), (55, 4605584), (80, 3166339), (88, 2878490), (110, 2302792), (176, 1439245), (220, 1151396), (440, 575698), (880, 287849)]